Home / 131,763.27-181,833.63-71,334.57

Finding the Fourth Proportional to 131,763.27, 181,833.63 and 71,334.57

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Solution

The fourth proportional to 131,763.27, 181,833.63 and 71,334.57 is: 98,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,763.27 : 181,833.63 = 71,334.57 : x
  2. Step 2: Convert to fraction form
    131,763.27/181,833.63 = 71,334.57/x
  3. Step 3: Cross multiply
    131,763.27x = 181,833.63 × 71,334.57
  4. Step 4: Simplify right side
    131,763.27x = 12,971,023,807.59
  5. Step 5: Solve for x
    x = 12,971,023,807.59/131,763.27
  6. Step 6: Final answer
    x = 98,441.88

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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.