Home / 122,974.19-169,716.45-71,983.85

Finding the Fourth Proportional to 122,974.19, 169,716.45 and 71,983.85

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Solution

The fourth proportional to 122,974.19, 169,716.45 and 71,983.85 is: 99,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,974.19 : 169,716.45 = 71,983.85 : x
  2. Step 2: Convert to fraction form
    122,974.19/169,716.45 = 71,983.85/x
  3. Step 3: Cross multiply
    122,974.19x = 169,716.45 × 71,983.85
  4. Step 4: Simplify right side
    122,974.19x = 12,216,842,630.75
  5. Step 5: Solve for x
    x = 12,216,842,630.75/122,974.19
  6. Step 6: Final answer
    x = 99,344.77

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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.