Home / 102,439.71-141,316.65-68,456.61

Finding the Fourth Proportional to 102,439.71, 141,316.65 and 68,456.61

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Solution

The fourth proportional to 102,439.71, 141,316.65 and 68,456.61 is: 94,436.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,439.71 : 141,316.65 = 68,456.61 : x
  2. Step 2: Convert to fraction form
    102,439.71/141,316.65 = 68,456.61/x
  3. Step 3: Cross multiply
    102,439.71x = 141,316.65 × 68,456.61
  4. Step 4: Simplify right side
    102,439.71x = 9,674,058,795.56
  5. Step 5: Solve for x
    x = 9,674,058,795.56/102,439.71
  6. Step 6: Final answer
    x = 94,436.61

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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.