Home / 122,230.13-168,687.29-71,938.85

Finding the Fourth Proportional to 122,230.13, 168,687.29 and 71,938.85

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Solution

The fourth proportional to 122,230.13, 168,687.29 and 71,938.85 is: 99,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,230.13 : 168,687.29 = 71,938.85 : x
  2. Step 2: Convert to fraction form
    122,230.13/168,687.29 = 71,938.85/x
  3. Step 3: Cross multiply
    122,230.13x = 168,687.29 × 71,938.85
  4. Step 4: Simplify right side
    122,230.13x = 12,135,168,988.63
  5. Step 5: Solve for x
    x = 12,135,168,988.63/122,230.13
  6. Step 6: Final answer
    x = 99,281.33

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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.