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Finding the Fourth Proportional to 145,701.59, 218,556.48 and 40,520.55

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Solution

The fourth proportional to 145,701.59, 218,556.48 and 40,520.55 is: 60,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,701.59 : 218,556.48 = 40,520.55 : x
  2. Step 2: Convert to fraction form
    145,701.59/218,556.48 = 40,520.55/x
  3. Step 3: Cross multiply
    145,701.59x = 218,556.48 × 40,520.55
  4. Step 4: Simplify right side
    145,701.59x = 8,856,029,519.27
  5. Step 5: Solve for x
    x = 8,856,029,519.27/145,701.59
  6. Step 6: Final answer
    x = 60,781.97

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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.