Home / 160,044.20-240,216.92-81,215

Finding the Fourth Proportional to 160,044.20, 240,216.92 and 81,215

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Solution

The fourth proportional to 160,044.20, 240,216.92 and 81,215 is: 121,898.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,044.20 : 240,216.92 = 81,215 : x
  2. Step 2: Convert to fraction form
    160,044.20/240,216.92 = 81,215/x
  3. Step 3: Cross multiply
    160,044.20x = 240,216.92 × 81,215
  4. Step 4: Simplify right side
    160,044.20x = 19,509,217,157.80
  5. Step 5: Solve for x
    x = 19,509,217,157.80/160,044.20
  6. Step 6: Final answer
    x = 121,898.93

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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.