Home / 127,102.88-175,329.06-79,273.20

Finding the Fourth Proportional to 127,102.88, 175,329.06 and 79,273.20

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Solution

The fourth proportional to 127,102.88, 175,329.06 and 79,273.20 is: 109,351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,102.88 : 175,329.06 = 79,273.20 : x
  2. Step 2: Convert to fraction form
    127,102.88/175,329.06 = 79,273.20/x
  3. Step 3: Cross multiply
    127,102.88x = 175,329.06 × 79,273.20
  4. Step 4: Simplify right side
    127,102.88x = 13,898,895,639.19
  5. Step 5: Solve for x
    x = 13,898,895,639.19/127,102.88
  6. Step 6: Final answer
    x = 109,351.54

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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.