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Finding the Fourth Proportional to 146,955.87, 220,401.41 and 72,001.71

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Solution

The fourth proportional to 146,955.87, 220,401.41 and 72,001.71 is: 107,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,955.87 : 220,401.41 = 72,001.71 : x
  2. Step 2: Convert to fraction form
    146,955.87/220,401.41 = 72,001.71/x
  3. Step 3: Cross multiply
    146,955.87x = 220,401.41 × 72,001.71
  4. Step 4: Simplify right side
    146,955.87x = 15,869,278,046.40
  5. Step 5: Solve for x
    x = 15,869,278,046.40/146,955.87
  6. Step 6: Final answer
    x = 107,986.69

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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.