Home / 206,715.48-285,311.79-126,125.70

Finding the Fourth Proportional to 206,715.48, 285,311.79 and 126,125.70

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Solution

The fourth proportional to 206,715.48, 285,311.79 and 126,125.70 is: 174,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,715.48 : 285,311.79 = 126,125.70 : x
  2. Step 2: Convert to fraction form
    206,715.48/285,311.79 = 126,125.70/x
  3. Step 3: Cross multiply
    206,715.48x = 285,311.79 × 126,125.70
  4. Step 4: Simplify right side
    206,715.48x = 35,985,149,232.00
  5. Step 5: Solve for x
    x = 35,985,149,232.00/206,715.48
  6. Step 6: Final answer
    x = 174,080.57

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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.