Home / 158,760.63-219,092.49-87,147.31

Finding the Fourth Proportional to 158,760.63, 219,092.49 and 87,147.31

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Solution

The fourth proportional to 158,760.63, 219,092.49 and 87,147.31 is: 120,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,760.63 : 219,092.49 = 87,147.31 : x
  2. Step 2: Convert to fraction form
    158,760.63/219,092.49 = 87,147.31/x
  3. Step 3: Cross multiply
    158,760.63x = 219,092.49 × 87,147.31
  4. Step 4: Simplify right side
    158,760.63x = 19,093,321,144.70
  5. Step 5: Solve for x
    x = 19,093,321,144.70/158,760.63
  6. Step 6: Final answer
    x = 120,264.84

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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.