Home / 146,421.65-219,381.82-79,908.50

Finding the Fourth Proportional to 146,421.65, 219,381.82 and 79,908.50

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Solution

The fourth proportional to 146,421.65, 219,381.82 and 79,908.50 is: 119,725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,421.65 : 219,381.82 = 79,908.50 : x
  2. Step 2: Convert to fraction form
    146,421.65/219,381.82 = 79,908.50/x
  3. Step 3: Cross multiply
    146,421.65x = 219,381.82 × 79,908.50
  4. Step 4: Simplify right side
    146,421.65x = 17,530,471,895.14
  5. Step 5: Solve for x
    x = 17,530,471,895.14/146,421.65
  6. Step 6: Final answer
    x = 119,725.96

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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.