Home / 137,561,177.80-189,834,418.95-75,680,187.76

Finding the Fourth Proportional to 137,561,177.80, 189,834,418.95 and 75,680,187.76

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Solution

The fourth proportional to 137,561,177.80, 189,834,418.95 and 75,680,187.76 is: 104,438,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,561,177.80 : 189,834,418.95 = 75,680,187.76 : x
  2. Step 2: Convert to fraction form
    137,561,177.80/189,834,418.95 = 75,680,187.76/x
  3. Step 3: Cross multiply
    137,561,177.80x = 189,834,418.95 × 75,680,187.76
  4. Step 4: Simplify right side
    137,561,177.80x = 14,366,704,469,446,502
  5. Step 5: Solve for x
    x = 14,366,704,469,446,502/137,561,177.80
  6. Step 6: Final answer
    x = 104,438,655.58

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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.