Home / 147,217.20-220,825.88-47,377.40

Finding the Fourth Proportional to 147,217.20, 220,825.88 and 47,377.40

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Solution

The fourth proportional to 147,217.20, 220,825.88 and 47,377.40 is: 71,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,217.20 : 220,825.88 = 47,377.40 : x
  2. Step 2: Convert to fraction form
    147,217.20/220,825.88 = 47,377.40/x
  3. Step 3: Cross multiply
    147,217.20x = 220,825.88 × 47,377.40
  4. Step 4: Simplify right side
    147,217.20x = 10,462,154,706.10
  5. Step 5: Solve for x
    x = 10,462,154,706.10/147,217.20
  6. Step 6: Final answer
    x = 71,066.12

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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.