Home / 124,745.30-172,172.13-74,472.02

Finding the Fourth Proportional to 124,745.30, 172,172.13 and 74,472.02

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Solution

The fourth proportional to 124,745.30, 172,172.13 and 74,472.02 is: 102,785.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,745.30 : 172,172.13 = 74,472.02 : x
  2. Step 2: Convert to fraction form
    124,745.30/172,172.13 = 74,472.02/x
  3. Step 3: Cross multiply
    124,745.30x = 172,172.13 × 74,472.02
  4. Step 4: Simplify right side
    124,745.30x = 12,822,006,308.80
  5. Step 5: Solve for x
    x = 12,822,006,308.80/124,745.30
  6. Step 6: Final answer
    x = 102,785.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.