Home / 156,517.22-215,922.03-92,831.78

Finding the Fourth Proportional to 156,517.22, 215,922.03 and 92,831.78

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Solution

The fourth proportional to 156,517.22, 215,922.03 and 92,831.78 is: 128,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,517.22 : 215,922.03 = 92,831.78 : x
  2. Step 2: Convert to fraction form
    156,517.22/215,922.03 = 92,831.78/x
  3. Step 3: Cross multiply
    156,517.22x = 215,922.03 × 92,831.78
  4. Step 4: Simplify right side
    156,517.22x = 20,044,426,386.11
  5. Step 5: Solve for x
    x = 20,044,426,386.11/156,517.22
  6. Step 6: Final answer
    x = 128,065.31

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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.