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Finding the Fourth Proportional to 169,401.60, 253,929.60 and 99,244.80

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Solution

The fourth proportional to 169,401.60, 253,929.60 and 99,244.80 is: 148,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,401.60 : 253,929.60 = 99,244.80 : x
  2. Step 2: Convert to fraction form
    169,401.60/253,929.60 = 99,244.80/x
  3. Step 3: Cross multiply
    169,401.60x = 253,929.60 × 99,244.80
  4. Step 4: Simplify right side
    169,401.60x = 25,201,192,366.08
  5. Step 5: Solve for x
    x = 25,201,192,366.08/169,401.60
  6. Step 6: Final answer
    x = 148,765.96

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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.