Home / 156,531.12-234,616.68-67,695.36

Finding the Fourth Proportional to 156,531.12, 234,616.68 and 67,695.36

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Solution

The fourth proportional to 156,531.12, 234,616.68 and 67,695.36 is: 101,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,531.12 : 234,616.68 = 67,695.36 : x
  2. Step 2: Convert to fraction form
    156,531.12/234,616.68 = 67,695.36/x
  3. Step 3: Cross multiply
    156,531.12x = 234,616.68 × 67,695.36
  4. Step 4: Simplify right side
    156,531.12x = 15,882,460,614.60
  5. Step 5: Solve for x
    x = 15,882,460,614.60/156,531.12
  6. Step 6: Final answer
    x = 101,465.20

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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.