Home / 124,946.29-172,448.08-73,987.31

Finding the Fourth Proportional to 124,946.29, 172,448.08 and 73,987.31

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Solution

The fourth proportional to 124,946.29, 172,448.08 and 73,987.31 is: 102,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,946.29 : 172,448.08 = 73,987.31 : x
  2. Step 2: Convert to fraction form
    124,946.29/172,448.08 = 73,987.31/x
  3. Step 3: Cross multiply
    124,946.29x = 172,448.08 × 73,987.31
  4. Step 4: Simplify right side
    124,946.29x = 12,758,969,553.86
  5. Step 5: Solve for x
    x = 12,758,969,553.86/124,946.29
  6. Step 6: Final answer
    x = 102,115.63

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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.