Home / 140,998.30-194,590.14-77,348.50

Finding the Fourth Proportional to 140,998.30, 194,590.14 and 77,348.50

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Solution

The fourth proportional to 140,998.30, 194,590.14 and 77,348.50 is: 106,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,998.30 : 194,590.14 = 77,348.50 : x
  2. Step 2: Convert to fraction form
    140,998.30/194,590.14 = 77,348.50/x
  3. Step 3: Cross multiply
    140,998.30x = 194,590.14 × 77,348.50
  4. Step 4: Simplify right side
    140,998.30x = 15,051,255,443.79
  5. Step 5: Solve for x
    x = 15,051,255,443.79/140,998.30
  6. Step 6: Final answer
    x = 106,747.78

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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.