Home / 148,161.75-204,463.20-80,178.72

Finding the Fourth Proportional to 148,161.75, 204,463.20 and 80,178.72

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Solution

The fourth proportional to 148,161.75, 204,463.20 and 80,178.72 is: 110,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,161.75 : 204,463.20 = 80,178.72 : x
  2. Step 2: Convert to fraction form
    148,161.75/204,463.20 = 80,178.72/x
  3. Step 3: Cross multiply
    148,161.75x = 204,463.20 × 80,178.72
  4. Step 4: Simplify right side
    148,161.75x = 16,393,596,595.70
  5. Step 5: Solve for x
    x = 16,393,596,595.70/148,161.75
  6. Step 6: Final answer
    x = 110,646.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.