Home / 80,222.95-120,203.18-42,743.26

Finding the Fourth Proportional to 80,222.95, 120,203.18 and 42,743.26

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Solution

The fourth proportional to 80,222.95, 120,203.18 and 42,743.26 is: 64,044.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,222.95 : 120,203.18 = 42,743.26 : x
  2. Step 2: Convert to fraction form
    80,222.95/120,203.18 = 42,743.26/x
  3. Step 3: Cross multiply
    80,222.95x = 120,203.18 × 42,743.26
  4. Step 4: Simplify right side
    80,222.95x = 5,137,874,960.83
  5. Step 5: Solve for x
    x = 5,137,874,960.83/80,222.95
  6. Step 6: Final answer
    x = 64,044.96

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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.