Home / 91,738,702.20-137,608,053.30-87,487,174.20

Finding the Fourth Proportional to 91,738,702.20, 137,608,053.30 and 87,487,174.20

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Solution

The fourth proportional to 91,738,702.20, 137,608,053.30 and 87,487,174.20 is: 131,230,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,738,702.20 : 137,608,053.30 = 87,487,174.20 : x
  2. Step 2: Convert to fraction form
    91,738,702.20/137,608,053.30 = 87,487,174.20/x
  3. Step 3: Cross multiply
    91,738,702.20x = 137,608,053.30 × 87,487,174.20
  4. Step 4: Simplify right side
    91,738,702.20x = 12,038,939,730,379,986
  5. Step 5: Solve for x
    x = 12,038,939,730,379,986/91,738,702.20
  6. Step 6: Final answer
    x = 131,230,761.30

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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.