Home / 147,636.20-221,454.30-137,721.80

Finding the Fourth Proportional to 147,636.20, 221,454.30 and 137,721.80

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Solution

The fourth proportional to 147,636.20, 221,454.30 and 137,721.80 is: 206,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,636.20 : 221,454.30 = 137,721.80 : x
  2. Step 2: Convert to fraction form
    147,636.20/221,454.30 = 137,721.80/x
  3. Step 3: Cross multiply
    147,636.20x = 221,454.30 × 137,721.80
  4. Step 4: Simplify right side
    147,636.20x = 30,499,084,813.74
  5. Step 5: Solve for x
    x = 30,499,084,813.74/147,636.20
  6. Step 6: Final answer
    x = 206,582.70

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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.