Home / 147,117.80-220,730.14-72,229.96

Finding the Fourth Proportional to 147,117.80, 220,730.14 and 72,229.96

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Solution

The fourth proportional to 147,117.80, 220,730.14 and 72,229.96 is: 108,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,117.80 : 220,730.14 = 72,229.96 : x
  2. Step 2: Convert to fraction form
    147,117.80/220,730.14 = 72,229.96/x
  3. Step 3: Cross multiply
    147,117.80x = 220,730.14 × 72,229.96
  4. Step 4: Simplify right side
    147,117.80x = 15,943,329,182.99
  5. Step 5: Solve for x
    x = 15,943,329,182.99/147,117.80
  6. Step 6: Final answer
    x = 108,371.18

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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.