Home / 171,919.20-257,723.28-61,085.28

Finding the Fourth Proportional to 171,919.20, 257,723.28 and 61,085.28

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Solution

The fourth proportional to 171,919.20, 257,723.28 and 61,085.28 is: 91,572.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,919.20 : 257,723.28 = 61,085.28 : x
  2. Step 2: Convert to fraction form
    171,919.20/257,723.28 = 61,085.28/x
  3. Step 3: Cross multiply
    171,919.20x = 257,723.28 × 61,085.28
  4. Step 4: Simplify right side
    171,919.20x = 15,743,098,721.32
  5. Step 5: Solve for x
    x = 15,743,098,721.32/171,919.20
  6. Step 6: Final answer
    x = 91,572.66

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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.