Home / 108,354.24-162,531.36-45,981

Finding the Fourth Proportional to 108,354.24, 162,531.36 and 45,981

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Solution

The fourth proportional to 108,354.24, 162,531.36 and 45,981 is: 68,971.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,354.24 : 162,531.36 = 45,981 : x
  2. Step 2: Convert to fraction form
    108,354.24/162,531.36 = 45,981/x
  3. Step 3: Cross multiply
    108,354.24x = 162,531.36 × 45,981
  4. Step 4: Simplify right side
    108,354.24x = 7,473,354,464.16
  5. Step 5: Solve for x
    x = 7,473,354,464.16/108,354.24
  6. Step 6: Final answer
    x = 68,971.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.