Home / 123,072.08-169,755.17-75,349.01

Finding the Fourth Proportional to 123,072.08, 169,755.17 and 75,349.01

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Solution

The fourth proportional to 123,072.08, 169,755.17 and 75,349.01 is: 103,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,072.08 : 169,755.17 = 75,349.01 : x
  2. Step 2: Convert to fraction form
    123,072.08/169,755.17 = 75,349.01/x
  3. Step 3: Cross multiply
    123,072.08x = 169,755.17 × 75,349.01
  4. Step 4: Simplify right side
    123,072.08x = 12,790,884,049.52
  5. Step 5: Solve for x
    x = 12,790,884,049.52/123,072.08
  6. Step 6: Final answer
    x = 103,930.02

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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.