Home / 101,246.31-139,721.04-55,925.61

Finding the Fourth Proportional to 101,246.31, 139,721.04 and 55,925.61

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Solution

The fourth proportional to 101,246.31, 139,721.04 and 55,925.61 is: 77,177.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,246.31 : 139,721.04 = 55,925.61 : x
  2. Step 2: Convert to fraction form
    101,246.31/139,721.04 = 55,925.61/x
  3. Step 3: Cross multiply
    101,246.31x = 139,721.04 × 55,925.61
  4. Step 4: Simplify right side
    101,246.31x = 7,813,984,391.83
  5. Step 5: Solve for x
    x = 7,813,984,391.83/101,246.31
  6. Step 6: Final answer
    x = 77,177.97

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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.