Home / 272,614.14-408,937.55-85,625.64

Finding the Fourth Proportional to 272,614.14, 408,937.55 and 85,625.64

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Solution

The fourth proportional to 272,614.14, 408,937.55 and 85,625.64 is: 128,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,614.14 : 408,937.55 = 85,625.64 : x
  2. Step 2: Convert to fraction form
    272,614.14/408,937.55 = 85,625.64/x
  3. Step 3: Cross multiply
    272,614.14x = 408,937.55 × 85,625.64
  4. Step 4: Simplify right side
    272,614.14x = 35,015,539,010.65
  5. Step 5: Solve for x
    x = 35,015,539,010.65/272,614.14
  6. Step 6: Final answer
    x = 128,443.59

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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.