Home / 156,517.92-234,717.03-85,402.54

Finding the Fourth Proportional to 156,517.92, 234,717.03 and 85,402.54

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Solution

The fourth proportional to 156,517.92, 234,717.03 and 85,402.54 is: 128,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,517.92 : 234,717.03 = 85,402.54 : x
  2. Step 2: Convert to fraction form
    156,517.92/234,717.03 = 85,402.54/x
  3. Step 3: Cross multiply
    156,517.92x = 234,717.03 × 85,402.54
  4. Step 4: Simplify right side
    156,517.92x = 20,045,430,896.57
  5. Step 5: Solve for x
    x = 20,045,430,896.57/156,517.92
  6. Step 6: Final answer
    x = 128,071.16

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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.