Home / 147,629.80-221,444.70-137,132.20

Finding the Fourth Proportional to 147,629.80, 221,444.70 and 137,132.20

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Solution

The fourth proportional to 147,629.80, 221,444.70 and 137,132.20 is: 205,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,629.80 : 221,444.70 = 137,132.20 : x
  2. Step 2: Convert to fraction form
    147,629.80/221,444.70 = 137,132.20/x
  3. Step 3: Cross multiply
    147,629.80x = 221,444.70 × 137,132.20
  4. Step 4: Simplify right side
    147,629.80x = 30,367,198,889.34
  5. Step 5: Solve for x
    x = 30,367,198,889.34/147,629.80
  6. Step 6: Final answer
    x = 205,698.30

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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.