Home / 156,381.27-215,806.38-84,761.27

Finding the Fourth Proportional to 156,381.27, 215,806.38 and 84,761.27

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Solution

The fourth proportional to 156,381.27, 215,806.38 and 84,761.27 is: 116,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,381.27 : 215,806.38 = 84,761.27 : x
  2. Step 2: Convert to fraction form
    156,381.27/215,806.38 = 84,761.27/x
  3. Step 3: Cross multiply
    156,381.27x = 215,806.38 × 84,761.27
  4. Step 4: Simplify right side
    156,381.27x = 18,292,022,255.29
  5. Step 5: Solve for x
    x = 18,292,022,255.29/156,381.27
  6. Step 6: Final answer
    x = 116,970.67

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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.