Home / 159,110.31-219,576.00-87,490.28

Finding the Fourth Proportional to 159,110.31, 219,576.00 and 87,490.28

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Solution

The fourth proportional to 159,110.31, 219,576.00 and 87,490.28 is: 120,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,110.31 : 219,576.00 = 87,490.28 : x
  2. Step 2: Convert to fraction form
    159,110.31/219,576.00 = 87,490.28/x
  3. Step 3: Cross multiply
    159,110.31x = 219,576.00 × 87,490.28
  4. Step 4: Simplify right side
    159,110.31x = 19,210,764,185.95
  5. Step 5: Solve for x
    x = 19,210,764,185.95/159,110.31
  6. Step 6: Final answer
    x = 120,738.65

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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.