Home / 80,960.34-120,626.52-76,433.25

Finding the Fourth Proportional to 80,960.34, 120,626.52 and 76,433.25

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Solution

The fourth proportional to 80,960.34, 120,626.52 and 76,433.25 is: 113,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,960.34 : 120,626.52 = 76,433.25 : x
  2. Step 2: Convert to fraction form
    80,960.34/120,626.52 = 76,433.25/x
  3. Step 3: Cross multiply
    80,960.34x = 120,626.52 × 76,433.25
  4. Step 4: Simplify right side
    80,960.34x = 9,219,876,959.79
  5. Step 5: Solve for x
    x = 9,219,876,959.79/80,960.34
  6. Step 6: Final answer
    x = 113,881.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.