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Finding the Fourth Proportional to 96,139.80, 144,234.90 and 36,977.40

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Solution

The fourth proportional to 96,139.80, 144,234.90 and 36,977.40 is: 55,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,139.80 : 144,234.90 = 36,977.40 : x
  2. Step 2: Convert to fraction form
    96,139.80/144,234.90 = 36,977.40/x
  3. Step 3: Cross multiply
    96,139.80x = 144,234.90 × 36,977.40
  4. Step 4: Simplify right side
    96,139.80x = 5,333,431,591.26
  5. Step 5: Solve for x
    x = 5,333,431,591.26/96,139.80
  6. Step 6: Final answer
    x = 55,475.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.