Home / 156,010.10-234,015.15-85,151.30

Finding the Fourth Proportional to 156,010.10, 234,015.15 and 85,151.30

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Solution

The fourth proportional to 156,010.10, 234,015.15 and 85,151.30 is: 127,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,010.10 : 234,015.15 = 85,151.30 : x
  2. Step 2: Convert to fraction form
    156,010.10/234,015.15 = 85,151.30/x
  3. Step 3: Cross multiply
    156,010.10x = 234,015.15 × 85,151.30
  4. Step 4: Simplify right side
    156,010.10x = 19,926,694,242.20
  5. Step 5: Solve for x
    x = 19,926,694,242.20/156,010.10
  6. Step 6: Final answer
    x = 127,726.95

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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.