Home / 124,723.06-172,115.19-71,007.31

Finding the Fourth Proportional to 124,723.06, 172,115.19 and 71,007.31

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Solution

The fourth proportional to 124,723.06, 172,115.19 and 71,007.31 is: 97,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,723.06 : 172,115.19 = 71,007.31 : x
  2. Step 2: Convert to fraction form
    124,723.06/172,115.19 = 71,007.31/x
  3. Step 3: Cross multiply
    124,723.06x = 172,115.19 × 71,007.31
  4. Step 4: Simplify right side
    124,723.06x = 12,221,436,652.04
  5. Step 5: Solve for x
    x = 12,221,436,652.04/124,723.06
  6. Step 6: Final answer
    x = 97,988.59

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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.