Home / 147,612.60-221,418.90-136,207.80

Finding the Fourth Proportional to 147,612.60, 221,418.90 and 136,207.80

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Solution

The fourth proportional to 147,612.60, 221,418.90 and 136,207.80 is: 204,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,612.60 : 221,418.90 = 136,207.80 : x
  2. Step 2: Convert to fraction form
    147,612.60/221,418.90 = 136,207.80/x
  3. Step 3: Cross multiply
    147,612.60x = 221,418.90 × 136,207.80
  4. Step 4: Simplify right side
    147,612.60x = 30,158,981,247.42
  5. Step 5: Solve for x
    x = 30,158,981,247.42/147,612.60
  6. Step 6: Final answer
    x = 204,311.70

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1.5x scale

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.