Home / 91,738,697.70-137,608,046.55-87,487,169.70

Finding the Fourth Proportional to 91,738,697.70, 137,608,046.55 and 87,487,169.70

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Solution

The fourth proportional to 91,738,697.70, 137,608,046.55 and 87,487,169.70 is: 131,230,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,738,697.70 : 137,608,046.55 = 87,487,169.70 : x
  2. Step 2: Convert to fraction form
    91,738,697.70/137,608,046.55 = 87,487,169.70/x
  3. Step 3: Cross multiply
    91,738,697.70x = 137,608,046.55 × 87,487,169.70
  4. Step 4: Simplify right side
    91,738,697.70x = 12,038,938,520,605,350
  5. Step 5: Solve for x
    x = 12,038,938,520,605,350/91,738,697.70
  6. Step 6: Final answer
    x = 131,230,754.55

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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.