Home / 145,046.30-217,579.92-60,721.65

Finding the Fourth Proportional to 145,046.30, 217,579.92 and 60,721.65

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Solution

The fourth proportional to 145,046.30, 217,579.92 and 60,721.65 is: 91,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,046.30 : 217,579.92 = 60,721.65 : x
  2. Step 2: Convert to fraction form
    145,046.30/217,579.92 = 60,721.65/x
  3. Step 3: Cross multiply
    145,046.30x = 217,579.92 × 60,721.65
  4. Step 4: Simplify right side
    145,046.30x = 13,211,811,749.27
  5. Step 5: Solve for x
    x = 13,211,811,749.27/145,046.30
  6. Step 6: Final answer
    x = 91,086.86

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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.