Home / 134,146.50-185,122.17-77,561.52

Finding the Fourth Proportional to 134,146.50, 185,122.17 and 77,561.52

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Solution

The fourth proportional to 134,146.50, 185,122.17 and 77,561.52 is: 107,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,146.50 : 185,122.17 = 77,561.52 : x
  2. Step 2: Convert to fraction form
    134,146.50/185,122.17 = 77,561.52/x
  3. Step 3: Cross multiply
    134,146.50x = 185,122.17 × 77,561.52
  4. Step 4: Simplify right side
    134,146.50x = 14,358,356,890.90
  5. Step 5: Solve for x
    x = 14,358,356,890.90/134,146.50
  6. Step 6: Final answer
    x = 107,034.90

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1.5x scale

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.