Home / 156,185.10-234,104.85-86,114.70

Finding the Fourth Proportional to 156,185.10, 234,104.85 and 86,114.70

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Solution

The fourth proportional to 156,185.10, 234,104.85 and 86,114.70 is: 129,076.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,185.10 : 234,104.85 = 86,114.70 : x
  2. Step 2: Convert to fraction form
    156,185.10/234,104.85 = 86,114.70/x
  3. Step 3: Cross multiply
    156,185.10x = 234,104.85 × 86,114.70
  4. Step 4: Simplify right side
    156,185.10x = 20,159,868,926.30
  5. Step 5: Solve for x
    x = 20,159,868,926.30/156,185.10
  6. Step 6: Final answer
    x = 129,076.77

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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.