Home / 80,302.32-120,465.36-75,381.84

Finding the Fourth Proportional to 80,302.32, 120,465.36 and 75,381.84

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Solution

The fourth proportional to 80,302.32, 120,465.36 and 75,381.84 is: 113,083.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,302.32 : 120,465.36 = 75,381.84 : x
  2. Step 2: Convert to fraction form
    80,302.32/120,465.36 = 75,381.84/x
  3. Step 3: Cross multiply
    80,302.32x = 120,465.36 × 75,381.84
  4. Step 4: Simplify right side
    80,302.32x = 9,080,900,493.06
  5. Step 5: Solve for x
    x = 9,080,900,493.06/80,302.32
  6. Step 6: Final answer
    x = 113,083.91

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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.