Home / 134,575.56-185,711.82-77,992.20

Finding the Fourth Proportional to 134,575.56, 185,711.82 and 77,992.20

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Solution

The fourth proportional to 134,575.56, 185,711.82 and 77,992.20 is: 107,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,575.56 : 185,711.82 = 77,992.20 : x
  2. Step 2: Convert to fraction form
    134,575.56/185,711.82 = 77,992.20/x
  3. Step 3: Cross multiply
    134,575.56x = 185,711.82 × 77,992.20
  4. Step 4: Simplify right side
    134,575.56x = 14,484,073,407.80
  5. Step 5: Solve for x
    x = 14,484,073,407.80/134,575.56
  6. Step 6: Final answer
    x = 107,627.81

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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.