Home / 148,434.80-222,911.40-143,769.20

Finding the Fourth Proportional to 148,434.80, 222,911.40 and 143,769.20

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Solution

The fourth proportional to 148,434.80, 222,911.40 and 143,769.20 is: 215,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,434.80 : 222,911.40 = 143,769.20 : x
  2. Step 2: Convert to fraction form
    148,434.80/222,911.40 = 143,769.20/x
  3. Step 3: Cross multiply
    148,434.80x = 222,911.40 × 143,769.20
  4. Step 4: Simplify right side
    148,434.80x = 32,047,793,648.88
  5. Step 5: Solve for x
    x = 32,047,793,648.88/148,434.80
  6. Step 6: Final answer
    x = 215,904.85

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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.