Home / 103,786.20-155,679.30-93,616.65

Finding the Fourth Proportional to 103,786.20, 155,679.30 and 93,616.65

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Solution

The fourth proportional to 103,786.20, 155,679.30 and 93,616.65 is: 140,424.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,786.20 : 155,679.30 = 93,616.65 : x
  2. Step 2: Convert to fraction form
    103,786.20/155,679.30 = 93,616.65/x
  3. Step 3: Cross multiply
    103,786.20x = 155,679.30 × 93,616.65
  4. Step 4: Simplify right side
    103,786.20x = 14,574,174,540.35
  5. Step 5: Solve for x
    x = 14,574,174,540.35/103,786.20
  6. Step 6: Final answer
    x = 140,424.98

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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.