Home / 143,124,859.80-197,520,743.28-107,780,306.94

Finding the Fourth Proportional to 143,124,859.80, 197,520,743.28 and 107,780,306.94

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Solution

The fourth proportional to 143,124,859.80, 197,520,743.28 and 107,780,306.94 is: 148,743,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,124,859.80 : 197,520,743.28 = 107,780,306.94 : x
  2. Step 2: Convert to fraction form
    143,124,859.80/197,520,743.28 = 107,780,306.94/x
  3. Step 3: Cross multiply
    143,124,859.80x = 197,520,743.28 × 107,780,306.94
  4. Step 4: Simplify right side
    143,124,859.80x = 21,288,846,337,735,344
  5. Step 5: Solve for x
    x = 21,288,846,337,735,344/143,124,859.80
  6. Step 6: Final answer
    x = 148,743,176.88

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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.