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Finding the Fourth Proportional to 124,207.65, 186,218.73 and 39,919.73

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Solution

The fourth proportional to 124,207.65, 186,218.73 and 39,919.73 is: 59,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,207.65 : 186,218.73 = 39,919.73 : x
  2. Step 2: Convert to fraction form
    124,207.65/186,218.73 = 39,919.73/x
  3. Step 3: Cross multiply
    124,207.65x = 186,218.73 × 39,919.73
  4. Step 4: Simplify right side
    124,207.65x = 7,433,800,491.45
  5. Step 5: Solve for x
    x = 7,433,800,491.45/124,207.65
  6. Step 6: Final answer
    x = 59,849.78

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1.5x scale

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.