Home / 127,831.10-176,412.94-71,242.88

Finding the Fourth Proportional to 127,831.10, 176,412.94 and 71,242.88

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Solution

The fourth proportional to 127,831.10, 176,412.94 and 71,242.88 is: 98,318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,831.10 : 176,412.94 = 71,242.88 : x
  2. Step 2: Convert to fraction form
    127,831.10/176,412.94 = 71,242.88/x
  3. Step 3: Cross multiply
    127,831.10x = 176,412.94 × 71,242.88
  4. Step 4: Simplify right side
    127,831.10x = 12,568,164,854.70
  5. Step 5: Solve for x
    x = 12,568,164,854.70/127,831.10
  6. Step 6: Final answer
    x = 98,318.53

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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.