Home / 131,479.32-181,441.36-71,049.94

Finding the Fourth Proportional to 131,479.32, 181,441.36 and 71,049.94

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Solution

The fourth proportional to 131,479.32, 181,441.36 and 71,049.94 is: 98,048.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,479.32 : 181,441.36 = 71,049.94 : x
  2. Step 2: Convert to fraction form
    131,479.32/181,441.36 = 71,049.94/x
  3. Step 3: Cross multiply
    131,479.32x = 181,441.36 × 71,049.94
  4. Step 4: Simplify right side
    131,479.32x = 12,891,397,741.52
  5. Step 5: Solve for x
    x = 12,891,397,741.52/131,479.32
  6. Step 6: Final answer
    x = 98,048.86

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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.