Home / 142,585.92-196,755.10-85,213.83

Finding the Fourth Proportional to 142,585.92, 196,755.10 and 85,213.83

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Solution

The fourth proportional to 142,585.92, 196,755.10 and 85,213.83 is: 117,587.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,585.92 : 196,755.10 = 85,213.83 : x
  2. Step 2: Convert to fraction form
    142,585.92/196,755.10 = 85,213.83/x
  3. Step 3: Cross multiply
    142,585.92x = 196,755.10 × 85,213.83
  4. Step 4: Simplify right side
    142,585.92x = 16,766,255,643.03
  5. Step 5: Solve for x
    x = 16,766,255,643.03/142,585.92
  6. Step 6: Final answer
    x = 117,587.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.