Home / 134,508.71-185,614.91-77,145.09

Finding the Fourth Proportional to 134,508.71, 185,614.91 and 77,145.09

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Solution

The fourth proportional to 134,508.71, 185,614.91 and 77,145.09 is: 106,456.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,508.71 : 185,614.91 = 77,145.09 : x
  2. Step 2: Convert to fraction form
    134,508.71/185,614.91 = 77,145.09/x
  3. Step 3: Cross multiply
    134,508.71x = 185,614.91 × 77,145.09
  4. Step 4: Simplify right side
    134,508.71x = 14,319,278,144.80
  5. Step 5: Solve for x
    x = 14,319,278,144.80/134,508.71
  6. Step 6: Final answer
    x = 106,456.14

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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.