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Finding the Fourth Proportional to 133,761.60, 200,677.20 and 38,989.64

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Solution

The fourth proportional to 133,761.60, 200,677.20 and 38,989.64 is: 58,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,761.60 : 200,677.20 = 38,989.64 : x
  2. Step 2: Convert to fraction form
    133,761.60/200,677.20 = 38,989.64/x
  3. Step 3: Cross multiply
    133,761.60x = 200,677.20 × 38,989.64
  4. Step 4: Simplify right side
    133,761.60x = 7,824,331,784.21
  5. Step 5: Solve for x
    x = 7,824,331,784.21/133,761.60
  6. Step 6: Final answer
    x = 58,494.60

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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.