Home / 147,618.20-221,427.30-137,703.80

Finding the Fourth Proportional to 147,618.20, 221,427.30 and 137,703.80

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Solution

The fourth proportional to 147,618.20, 221,427.30 and 137,703.80 is: 206,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,618.20 : 221,427.30 = 137,703.80 : x
  2. Step 2: Convert to fraction form
    147,618.20/221,427.30 = 137,703.80/x
  3. Step 3: Cross multiply
    147,618.20x = 221,427.30 × 137,703.80
  4. Step 4: Simplify right side
    147,618.20x = 30,491,380,633.74
  5. Step 5: Solve for x
    x = 30,491,380,633.74/147,618.20
  6. Step 6: Final answer
    x = 206,555.70

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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.