Home / 122,902.84-169,618.62-75,187.90

Finding the Fourth Proportional to 122,902.84, 169,618.62 and 75,187.90

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Solution

The fourth proportional to 122,902.84, 169,618.62 and 75,187.90 is: 103,767.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,902.84 : 169,618.62 = 75,187.90 : x
  2. Step 2: Convert to fraction form
    122,902.84/169,618.62 = 75,187.90/x
  3. Step 3: Cross multiply
    122,902.84x = 169,618.62 × 75,187.90
  4. Step 4: Simplify right side
    122,902.84x = 12,753,267,838.70
  5. Step 5: Solve for x
    x = 12,753,267,838.70/122,902.84
  6. Step 6: Final answer
    x = 103,767.07

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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.