Home / 206,022.81-284,287.48-120,000.68

Finding the Fourth Proportional to 206,022.81, 284,287.48 and 120,000.68

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Solution

The fourth proportional to 206,022.81, 284,287.48 and 120,000.68 is: 165,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,022.81 : 284,287.48 = 120,000.68 : x
  2. Step 2: Convert to fraction form
    206,022.81/284,287.48 = 120,000.68/x
  3. Step 3: Cross multiply
    206,022.81x = 284,287.48 × 120,000.68
  4. Step 4: Simplify right side
    206,022.81x = 34,114,690,915.49
  5. Step 5: Solve for x
    x = 34,114,690,915.49/206,022.81
  6. Step 6: Final answer
    x = 165,586.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.