Home / 158,997.10-219,405.39-87,375.58

Finding the Fourth Proportional to 158,997.10, 219,405.39 and 87,375.58

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Solution

The fourth proportional to 158,997.10, 219,405.39 and 87,375.58 is: 120,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,997.10 : 219,405.39 = 87,375.58 : x
  2. Step 2: Convert to fraction form
    158,997.10/219,405.39 = 87,375.58/x
  3. Step 3: Cross multiply
    158,997.10x = 219,405.39 × 87,375.58
  4. Step 4: Simplify right side
    158,997.10x = 19,170,673,206.38
  5. Step 5: Solve for x
    x = 19,170,673,206.38/158,997.10
  6. Step 6: Final answer
    x = 120,572.47

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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.