Home / 87,333,432.40-131,000,148.60-81,664,728.40

Finding the Fourth Proportional to 87,333,432.40, 131,000,148.60 and 81,664,728.40

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Solution

The fourth proportional to 87,333,432.40, 131,000,148.60 and 81,664,728.40 is: 122,497,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,333,432.40 : 131,000,148.60 = 81,664,728.40 : x
  2. Step 2: Convert to fraction form
    87,333,432.40/131,000,148.60 = 81,664,728.40/x
  3. Step 3: Cross multiply
    87,333,432.40x = 131,000,148.60 × 81,664,728.40
  4. Step 4: Simplify right side
    87,333,432.40x = 10,698,091,555,778,640
  5. Step 5: Solve for x
    x = 10,698,091,555,778,640/87,333,432.40
  6. Step 6: Final answer
    x = 122,497,092.60

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1.5x scale

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.