Home / 140,662.71-194,115.07-77,006.43

Finding the Fourth Proportional to 140,662.71, 194,115.07 and 77,006.43

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Solution

The fourth proportional to 140,662.71, 194,115.07 and 77,006.43 is: 106,269.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,662.71 : 194,115.07 = 77,006.43 : x
  2. Step 2: Convert to fraction form
    140,662.71/194,115.07 = 77,006.43/x
  3. Step 3: Cross multiply
    140,662.71x = 194,115.07 × 77,006.43
  4. Step 4: Simplify right side
    140,662.71x = 14,948,108,549.90
  5. Step 5: Solve for x
    x = 14,948,108,549.90/140,662.71
  6. Step 6: Final answer
    x = 106,269.16

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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.