Home / 165,091.20-247,636.80-40,432.20

Finding the Fourth Proportional to 165,091.20, 247,636.80 and 40,432.20

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Solution

The fourth proportional to 165,091.20, 247,636.80 and 40,432.20 is: 60,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,091.20 : 247,636.80 = 40,432.20 : x
  2. Step 2: Convert to fraction form
    165,091.20/247,636.80 = 40,432.20/x
  3. Step 3: Cross multiply
    165,091.20x = 247,636.80 × 40,432.20
  4. Step 4: Simplify right side
    165,091.20x = 10,012,500,624.96
  5. Step 5: Solve for x
    x = 10,012,500,624.96/165,091.20
  6. Step 6: Final answer
    x = 60,648.30

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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.