Home / 80,732.62-120,582.23-73,122.49

Finding the Fourth Proportional to 80,732.62, 120,582.23 and 73,122.49

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Solution

The fourth proportional to 80,732.62, 120,582.23 and 73,122.49 is: 109,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,732.62 : 120,582.23 = 73,122.49 : x
  2. Step 2: Convert to fraction form
    80,732.62/120,582.23 = 73,122.49/x
  3. Step 3: Cross multiply
    80,732.62x = 120,582.23 × 73,122.49
  4. Step 4: Simplify right side
    80,732.62x = 8,817,272,907.35
  5. Step 5: Solve for x
    x = 8,817,272,907.35/80,732.62
  6. Step 6: Final answer
    x = 109,215.74

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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.