Home / 112,943.30-169,425.57-80,620.95

Finding the Fourth Proportional to 112,943.30, 169,425.57 and 80,620.95

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Solution

The fourth proportional to 112,943.30, 169,425.57 and 80,620.95 is: 120,939.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,943.30 : 169,425.57 = 80,620.95 : x
  2. Step 2: Convert to fraction form
    112,943.30/169,425.57 = 80,620.95/x
  3. Step 3: Cross multiply
    112,943.30x = 169,425.57 × 80,620.95
  4. Step 4: Simplify right side
    112,943.30x = 13,659,251,345.37
  5. Step 5: Solve for x
    x = 13,659,251,345.37/112,943.30
  6. Step 6: Final answer
    x = 120,939.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.