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Finding the Fourth Proportional to 143,612.80, 214,908.90 and 125,096.20

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Solution

The fourth proportional to 143,612.80, 214,908.90 and 125,096.20 is: 187,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,612.80 : 214,908.90 = 125,096.20 : x
  2. Step 2: Convert to fraction form
    143,612.80/214,908.90 = 125,096.20/x
  3. Step 3: Cross multiply
    143,612.80x = 214,908.90 × 125,096.20
  4. Step 4: Simplify right side
    143,612.80x = 26,884,286,736.18
  5. Step 5: Solve for x
    x = 26,884,286,736.18/143,612.80
  6. Step 6: Final answer
    x = 187,199.80

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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.