Home / 127,727.46-176,269.37-71,138.79

Finding the Fourth Proportional to 127,727.46, 176,269.37 and 71,138.79

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Solution

The fourth proportional to 127,727.46, 176,269.37 and 71,138.79 is: 98,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,727.46 : 176,269.37 = 71,138.79 : x
  2. Step 2: Convert to fraction form
    127,727.46/176,269.37 = 71,138.79/x
  3. Step 3: Cross multiply
    127,727.46x = 176,269.37 × 71,138.79
  4. Step 4: Simplify right side
    127,727.46x = 12,539,589,340.17
  5. Step 5: Solve for x
    x = 12,539,589,340.17/127,727.46
  6. Step 6: Final answer
    x = 98,174.58

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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.