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Finding the Fourth Proportional to 88,883.20, 133,397.70 and 85,967.20

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Solution

The fourth proportional to 88,883.20, 133,397.70 and 85,967.20 is: 129,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,883.20 : 133,397.70 = 85,967.20 : x
  2. Step 2: Convert to fraction form
    88,883.20/133,397.70 = 85,967.20/x
  3. Step 3: Cross multiply
    88,883.20x = 133,397.70 × 85,967.20
  4. Step 4: Simplify right side
    88,883.20x = 11,467,826,755.44
  5. Step 5: Solve for x
    x = 11,467,826,755.44/88,883.20
  6. Step 6: Final answer
    x = 129,021.31

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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.