Home / 146,339.10-219,399.30-79,854.30

Finding the Fourth Proportional to 146,339.10, 219,399.30 and 79,854.30

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Solution

The fourth proportional to 146,339.10, 219,399.30 and 79,854.30 is: 119,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,339.10 : 219,399.30 = 79,854.30 : x
  2. Step 2: Convert to fraction form
    146,339.10/219,399.30 = 79,854.30/x
  3. Step 3: Cross multiply
    146,339.10x = 219,399.30 × 79,854.30
  4. Step 4: Simplify right side
    146,339.10x = 17,519,977,521.99
  5. Step 5: Solve for x
    x = 17,519,977,521.99/146,339.10
  6. Step 6: Final answer
    x = 119,721.78

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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.