Home / 179,630.10-269,445.15-120,143.70

Finding the Fourth Proportional to 179,630.10, 269,445.15 and 120,143.70

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Solution

The fourth proportional to 179,630.10, 269,445.15 and 120,143.70 is: 180,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,630.10 : 269,445.15 = 120,143.70 : x
  2. Step 2: Convert to fraction form
    179,630.10/269,445.15 = 120,143.70/x
  3. Step 3: Cross multiply
    179,630.10x = 269,445.15 × 120,143.70
  4. Step 4: Simplify right side
    179,630.10x = 32,372,137,268.06
  5. Step 5: Solve for x
    x = 32,372,137,268.06/179,630.10
  6. Step 6: Final answer
    x = 180,215.55

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1.5x scale

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.