Home / 122,856.27-169,513.61-69,121.68

Finding the Fourth Proportional to 122,856.27, 169,513.61 and 69,121.68

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Solution

The fourth proportional to 122,856.27, 169,513.61 and 69,121.68 is: 95,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,856.27 : 169,513.61 = 69,121.68 : x
  2. Step 2: Convert to fraction form
    122,856.27/169,513.61 = 69,121.68/x
  3. Step 3: Cross multiply
    122,856.27x = 169,513.61 × 69,121.68
  4. Step 4: Simplify right side
    122,856.27x = 11,717,065,160.46
  5. Step 5: Solve for x
    x = 11,717,065,160.46/122,856.27
  6. Step 6: Final answer
    x = 95,372.14

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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.