Home / 127,629.45-176,125.73-79,909.11

Finding the Fourth Proportional to 127,629.45, 176,125.73 and 79,909.11

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Solution

The fourth proportional to 127,629.45, 176,125.73 and 79,909.11 is: 110,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,629.45 : 176,125.73 = 79,909.11 : x
  2. Step 2: Convert to fraction form
    127,629.45/176,125.73 = 79,909.11/x
  3. Step 3: Cross multiply
    127,629.45x = 176,125.73 × 79,909.11
  4. Step 4: Simplify right side
    127,629.45x = 14,074,049,932.85
  5. Step 5: Solve for x
    x = 14,074,049,932.85/127,629.45
  6. Step 6: Final answer
    x = 110,272.75

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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.