Home / 134,882.27-186,143.72-77,540.14

Finding the Fourth Proportional to 134,882.27, 186,143.72 and 77,540.14

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Solution

The fourth proportional to 134,882.27, 186,143.72 and 77,540.14 is: 107,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,882.27 : 186,143.72 = 77,540.14 : x
  2. Step 2: Convert to fraction form
    134,882.27/186,143.72 = 77,540.14/x
  3. Step 3: Cross multiply
    134,882.27x = 186,143.72 × 77,540.14
  4. Step 4: Simplify right side
    134,882.27x = 14,433,609,953.90
  5. Step 5: Solve for x
    x = 14,433,609,953.90/134,882.27
  6. Step 6: Final answer
    x = 107,008.95

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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.