Home / 108,531.70-162,578.85-73,102.30

Finding the Fourth Proportional to 108,531.70, 162,578.85 and 73,102.30

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Solution

The fourth proportional to 108,531.70, 162,578.85 and 73,102.30 is: 109,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,531.70 : 162,578.85 = 73,102.30 : x
  2. Step 2: Convert to fraction form
    108,531.70/162,578.85 = 73,102.30/x
  3. Step 3: Cross multiply
    108,531.70x = 162,578.85 × 73,102.30
  4. Step 4: Simplify right side
    108,531.70x = 11,884,887,866.36
  5. Step 5: Solve for x
    x = 11,884,887,866.36/108,531.70
  6. Step 6: Final answer
    x = 109,506.14

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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.