Home / 129,831.75-179,167.83-70,215.75

Finding the Fourth Proportional to 129,831.75, 179,167.83 and 70,215.75

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Solution

The fourth proportional to 129,831.75, 179,167.83 and 70,215.75 is: 96,897.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,831.75 : 179,167.83 = 70,215.75 : x
  2. Step 2: Convert to fraction form
    129,831.75/179,167.83 = 70,215.75/x
  3. Step 3: Cross multiply
    129,831.75x = 179,167.83 × 70,215.75
  4. Step 4: Simplify right side
    129,831.75x = 12,580,403,559.32
  5. Step 5: Solve for x
    x = 12,580,403,559.32/129,831.75
  6. Step 6: Final answer
    x = 96,897.74

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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.