Home / 122,920.38-169,518.15-80,463.42

Finding the Fourth Proportional to 122,920.38, 169,518.15 and 80,463.42

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Solution

The fourth proportional to 122,920.38, 169,518.15 and 80,463.42 is: 110,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,920.38 : 169,518.15 = 80,463.42 : x
  2. Step 2: Convert to fraction form
    122,920.38/169,518.15 = 80,463.42/x
  3. Step 3: Cross multiply
    122,920.38x = 169,518.15 × 80,463.42
  4. Step 4: Simplify right side
    122,920.38x = 13,640,010,101.07
  5. Step 5: Solve for x
    x = 13,640,010,101.07/122,920.38
  6. Step 6: Final answer
    x = 110,966.22

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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.