Home / 122,217.15-168,344.17-86,344.87

Finding the Fourth Proportional to 122,217.15, 168,344.17 and 86,344.87

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Solution

The fourth proportional to 122,217.15, 168,344.17 and 86,344.87 is: 118,933.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,217.15 : 168,344.17 = 86,344.87 : x
  2. Step 2: Convert to fraction form
    122,217.15/168,344.17 = 86,344.87/x
  3. Step 3: Cross multiply
    122,217.15x = 168,344.17 × 86,344.87
  4. Step 4: Simplify right side
    122,217.15x = 14,535,655,473.91
  5. Step 5: Solve for x
    x = 14,535,655,473.91/122,217.15
  6. Step 6: Final answer
    x = 118,933.03

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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.