Home / 147,215.80-220,823.70-132,470.20

Finding the Fourth Proportional to 147,215.80, 220,823.70 and 132,470.20

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Solution

The fourth proportional to 147,215.80, 220,823.70 and 132,470.20 is: 198,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,215.80 : 220,823.70 = 132,470.20 : x
  2. Step 2: Convert to fraction form
    147,215.80/220,823.70 = 132,470.20/x
  3. Step 3: Cross multiply
    147,215.80x = 220,823.70 × 132,470.20
  4. Step 4: Simplify right side
    147,215.80x = 29,252,559,703.74
  5. Step 5: Solve for x
    x = 29,252,559,703.74/147,215.80
  6. Step 6: Final answer
    x = 198,705.30

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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.