Home / 159,400.17-219,972.24-87,779.97

Finding the Fourth Proportional to 159,400.17, 219,972.24 and 87,779.97

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Solution

The fourth proportional to 159,400.17, 219,972.24 and 87,779.97 is: 121,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,400.17 : 219,972.24 = 87,779.97 : x
  2. Step 2: Convert to fraction form
    159,400.17/219,972.24 = 87,779.97/x
  3. Step 3: Cross multiply
    159,400.17x = 219,972.24 × 87,779.97
  4. Step 4: Simplify right side
    159,400.17x = 19,309,156,628.03
  5. Step 5: Solve for x
    x = 19,309,156,628.03/159,400.17
  6. Step 6: Final answer
    x = 121,136.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.