Home / 156,630.60-234,989.10-77,747.40

Finding the Fourth Proportional to 156,630.60, 234,989.10 and 77,747.40

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Solution

The fourth proportional to 156,630.60, 234,989.10 and 77,747.40 is: 116,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,630.60 : 234,989.10 = 77,747.40 : x
  2. Step 2: Convert to fraction form
    156,630.60/234,989.10 = 77,747.40/x
  3. Step 3: Cross multiply
    156,630.60x = 234,989.10 × 77,747.40
  4. Step 4: Simplify right side
    156,630.60x = 18,269,791,553.34
  5. Step 5: Solve for x
    x = 18,269,791,553.34/156,630.60
  6. Step 6: Final answer
    x = 116,642.54

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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.