Home / 124,659,920.81-172,027,687.74-68,142,154.61

Finding the Fourth Proportional to 124,659,920.81, 172,027,687.74 and 68,142,154.61

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Solution

The fourth proportional to 124,659,920.81, 172,027,687.74 and 68,142,154.61 is: 94,034,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,659,920.81 : 172,027,687.74 = 68,142,154.61 : x
  2. Step 2: Convert to fraction form
    124,659,920.81/172,027,687.74 = 68,142,154.61/x
  3. Step 3: Cross multiply
    124,659,920.81x = 172,027,687.74 × 68,142,154.61
  4. Step 4: Simplify right side
    124,659,920.81x = 11,722,337,294,319,744
  5. Step 5: Solve for x
    x = 11,722,337,294,319,744/124,659,920.81
  6. Step 6: Final answer
    x = 94,034,531.86

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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.