Home / 127,198.86-175,535.22-69,840.66

Finding the Fourth Proportional to 127,198.86, 175,535.22 and 69,840.66

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Solution

The fourth proportional to 127,198.86, 175,535.22 and 69,840.66 is: 96,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,198.86 : 175,535.22 = 69,840.66 : x
  2. Step 2: Convert to fraction form
    127,198.86/175,535.22 = 69,840.66/x
  3. Step 3: Cross multiply
    127,198.86x = 175,535.22 × 69,840.66
  4. Step 4: Simplify right side
    127,198.86x = 12,259,495,618.05
  5. Step 5: Solve for x
    x = 12,259,495,618.05/127,198.86
  6. Step 6: Final answer
    x = 96,380.55

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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.