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Finding the Fourth Proportional to 90,244.86, 135,219.33 and 63,902.31

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Solution

The fourth proportional to 90,244.86, 135,219.33 and 63,902.31 is: 95,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,244.86 : 135,219.33 = 63,902.31 : x
  2. Step 2: Convert to fraction form
    90,244.86/135,219.33 = 63,902.31/x
  3. Step 3: Cross multiply
    90,244.86x = 135,219.33 × 63,902.31
  4. Step 4: Simplify right side
    90,244.86x = 8,640,827,543.65
  5. Step 5: Solve for x
    x = 8,640,827,543.65/90,244.86
  6. Step 6: Final answer
    x = 95,748.69

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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.