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Finding the Fourth Proportional to 146,648.92, 220,119.18 and 67,780.84

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Solution

The fourth proportional to 146,648.92, 220,119.18 and 67,780.84 is: 101,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,648.92 : 220,119.18 = 67,780.84 : x
  2. Step 2: Convert to fraction form
    146,648.92/220,119.18 = 67,780.84/x
  3. Step 3: Cross multiply
    146,648.92x = 220,119.18 × 67,780.84
  4. Step 4: Simplify right side
    146,648.92x = 14,919,862,920.51
  5. Step 5: Solve for x
    x = 14,919,862,920.51/146,648.92
  6. Step 6: Final answer
    x = 101,738.65

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1.5x scale

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.