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Finding the Fourth Proportional to 91,159.20, 136,771.20 and 44,380.80

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Solution

The fourth proportional to 91,159.20, 136,771.20 and 44,380.80 is: 66,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,159.20 : 136,771.20 = 44,380.80 : x
  2. Step 2: Convert to fraction form
    91,159.20/136,771.20 = 44,380.80/x
  3. Step 3: Cross multiply
    91,159.20x = 136,771.20 × 44,380.80
  4. Step 4: Simplify right side
    91,159.20x = 6,070,015,272.96
  5. Step 5: Solve for x
    x = 6,070,015,272.96/91,159.20
  6. Step 6: Final answer
    x = 66,586.97

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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.