Home / 108,540.28-162,530.02-74,910.07

Finding the Fourth Proportional to 108,540.28, 162,530.02 and 74,910.07

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Solution

The fourth proportional to 108,540.28, 162,530.02 and 74,910.07 is: 112,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,540.28 : 162,530.02 = 74,910.07 : x
  2. Step 2: Convert to fraction form
    108,540.28/162,530.02 = 74,910.07/x
  3. Step 3: Cross multiply
    108,540.28x = 162,530.02 × 74,910.07
  4. Step 4: Simplify right side
    108,540.28x = 12,175,134,347.19
  5. Step 5: Solve for x
    x = 12,175,134,347.19/108,540.28
  6. Step 6: Final answer
    x = 112,171.58

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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.