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Finding the Fourth Proportional to 136,937.60, 205,422.40 and 43,452.80

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Solution

The fourth proportional to 136,937.60, 205,422.40 and 43,452.80 is: 65,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,937.60 : 205,422.40 = 43,452.80 : x
  2. Step 2: Convert to fraction form
    136,937.60/205,422.40 = 43,452.80/x
  3. Step 3: Cross multiply
    136,937.60x = 205,422.40 × 43,452.80
  4. Step 4: Simplify right side
    136,937.60x = 8,926,178,462.72
  5. Step 5: Solve for x
    x = 8,926,178,462.72/136,937.60
  6. Step 6: Final answer
    x = 65,184.28

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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.