Home / 143,690,709.78-215,672,330.16-88,937,672.76

Finding the Fourth Proportional to 143,690,709.78, 215,672,330.16 and 88,937,672.76

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Solution

The fourth proportional to 143,690,709.78, 215,672,330.16 and 88,937,672.76 is: 133,490,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,690,709.78 : 215,672,330.16 = 88,937,672.76 : x
  2. Step 2: Convert to fraction form
    143,690,709.78/215,672,330.16 = 88,937,672.76/x
  3. Step 3: Cross multiply
    143,690,709.78x = 215,672,330.16 × 88,937,672.76
  4. Step 4: Simplify right side
    143,690,709.78x = 19,181,395,123,156,760
  5. Step 5: Solve for x
    x = 19,181,395,123,156,760/143,690,709.78
  6. Step 6: Final answer
    x = 133,490,850.96

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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.