Home / 663,745.20-995,621.40-165,109.20

Finding the Fourth Proportional to 663,745.20, 995,621.40 and 165,109.20

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Solution

The fourth proportional to 663,745.20, 995,621.40 and 165,109.20 is: 247,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,745.20 : 995,621.40 = 165,109.20 : x
  2. Step 2: Convert to fraction form
    663,745.20/995,621.40 = 165,109.20/x
  3. Step 3: Cross multiply
    663,745.20x = 995,621.40 × 165,109.20
  4. Step 4: Simplify right side
    663,745.20x = 164,386,252,856.88
  5. Step 5: Solve for x
    x = 164,386,252,856.88/663,745.20
  6. Step 6: Final answer
    x = 247,664.70

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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.