Home / 104,031.38-156,046.26-54,085.70

Finding the Fourth Proportional to 104,031.38, 156,046.26 and 54,085.70

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Solution

The fourth proportional to 104,031.38, 156,046.26 and 54,085.70 is: 81,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,031.38 : 156,046.26 = 54,085.70 : x
  2. Step 2: Convert to fraction form
    104,031.38/156,046.26 = 54,085.70/x
  3. Step 3: Cross multiply
    104,031.38x = 156,046.26 × 54,085.70
  4. Step 4: Simplify right side
    104,031.38x = 8,439,871,204.48
  5. Step 5: Solve for x
    x = 8,439,871,204.48/104,031.38
  6. Step 6: Final answer
    x = 81,128.13

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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.