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Finding the Fourth Proportional to 104,279.78, 156,425.76 and 40,238.26

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Solution

The fourth proportional to 104,279.78, 156,425.76 and 40,238.26 is: 60,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,279.78 : 156,425.76 = 40,238.26 : x
  2. Step 2: Convert to fraction form
    104,279.78/156,425.76 = 40,238.26/x
  3. Step 3: Cross multiply
    104,279.78x = 156,425.76 × 40,238.26
  4. Step 4: Simplify right side
    104,279.78x = 6,294,300,401.58
  5. Step 5: Solve for x
    x = 6,294,300,401.58/104,279.78
  6. Step 6: Final answer
    x = 60,359.74

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1.5x scale

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.