Home / 127,831.29-176,408.07-71,246.31

Finding the Fourth Proportional to 127,831.29, 176,408.07 and 71,246.31

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Solution

The fourth proportional to 127,831.29, 176,408.07 and 71,246.31 is: 98,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,831.29 : 176,408.07 = 71,246.31 : x
  2. Step 2: Convert to fraction form
    127,831.29/176,408.07 = 71,246.31/x
  3. Step 3: Cross multiply
    127,831.29x = 176,408.07 × 71,246.31
  4. Step 4: Simplify right side
    127,831.29x = 12,568,424,041.72
  5. Step 5: Solve for x
    x = 12,568,424,041.72/127,831.29
  6. Step 6: Final answer
    x = 98,320.40

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1.5x scale

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.