Home / 147,986.10-221,979.15-136,581.30

Finding the Fourth Proportional to 147,986.10, 221,979.15 and 136,581.30

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Solution

The fourth proportional to 147,986.10, 221,979.15 and 136,581.30 is: 204,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,986.10 : 221,979.15 = 136,581.30 : x
  2. Step 2: Convert to fraction form
    147,986.10/221,979.15 = 136,581.30/x
  3. Step 3: Cross multiply
    147,986.10x = 221,979.15 × 136,581.30
  4. Step 4: Simplify right side
    147,986.10x = 30,318,200,879.90
  5. Step 5: Solve for x
    x = 30,318,200,879.90/147,986.10
  6. Step 6: Final answer
    x = 204,871.95

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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.