Home / 104,831.20-156,939.60-92,543.20

Finding the Fourth Proportional to 104,831.20, 156,939.60 and 92,543.20

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Solution

The fourth proportional to 104,831.20, 156,939.60 and 92,543.20 is: 138,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,831.20 : 156,939.60 = 92,543.20 : x
  2. Step 2: Convert to fraction form
    104,831.20/156,939.60 = 92,543.20/x
  3. Step 3: Cross multiply
    104,831.20x = 156,939.60 × 92,543.20
  4. Step 4: Simplify right side
    104,831.20x = 14,523,692,790.72
  5. Step 5: Solve for x
    x = 14,523,692,790.72/104,831.20
  6. Step 6: Final answer
    x = 138,543.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.