Home / 131,679,158.90-181,780,251.82-87,699,347.06

Finding the Fourth Proportional to 131,679,158.90, 181,780,251.82 and 87,699,347.06

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Solution

The fourth proportional to 131,679,158.90, 181,780,251.82 and 87,699,347.06 is: 121,067,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,679,158.90 : 181,780,251.82 = 87,699,347.06 : x
  2. Step 2: Convert to fraction form
    131,679,158.90/181,780,251.82 = 87,699,347.06/x
  3. Step 3: Cross multiply
    131,679,158.90x = 181,780,251.82 × 87,699,347.06
  4. Step 4: Simplify right side
    131,679,158.90x = 15,942,009,393,016,376
  5. Step 5: Solve for x
    x = 15,942,009,393,016,376/131,679,158.90
  6. Step 6: Final answer
    x = 121,067,065.78

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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.