Home / 140,789.49-194,294.45-77,127.29

Finding the Fourth Proportional to 140,789.49, 194,294.45 and 77,127.29

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Solution

The fourth proportional to 140,789.49, 194,294.45 and 77,127.29 is: 106,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,789.49 : 194,294.45 = 77,127.29 : x
  2. Step 2: Convert to fraction form
    140,789.49/194,294.45 = 77,127.29/x
  3. Step 3: Cross multiply
    140,789.49x = 194,294.45 × 77,127.29
  4. Step 4: Simplify right side
    140,789.49x = 14,985,403,906.65
  5. Step 5: Solve for x
    x = 14,985,403,906.65/140,789.49
  6. Step 6: Final answer
    x = 106,438.37

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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.