Home / 120,183.41-165,848.11-65,734.71

Finding the Fourth Proportional to 120,183.41, 165,848.11 and 65,734.71

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Solution

The fourth proportional to 120,183.41, 165,848.11 and 65,734.71 is: 90,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,183.41 : 165,848.11 = 65,734.71 : x
  2. Step 2: Convert to fraction form
    120,183.41/165,848.11 = 65,734.71/x
  3. Step 3: Cross multiply
    120,183.41x = 165,848.11 × 65,734.71
  4. Step 4: Simplify right side
    120,183.41x = 10,901,976,628.63
  5. Step 5: Solve for x
    x = 10,901,976,628.63/120,183.41
  6. Step 6: Final answer
    x = 90,711.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.