Home / 90,819.45-136,161.30-62,659.15

Finding the Fourth Proportional to 90,819.45, 136,161.30 and 62,659.15

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Solution

The fourth proportional to 90,819.45, 136,161.30 and 62,659.15 is: 93,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,819.45 : 136,161.30 = 62,659.15 : x
  2. Step 2: Convert to fraction form
    90,819.45/136,161.30 = 62,659.15/x
  3. Step 3: Cross multiply
    90,819.45x = 136,161.30 × 62,659.15
  4. Step 4: Simplify right side
    90,819.45x = 8,531,750,640.09
  5. Step 5: Solve for x
    x = 8,531,750,640.09/90,819.45
  6. Step 6: Final answer
    x = 93,941.89

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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.