Home / 158,725.38-219,040.36-87,106.57

Finding the Fourth Proportional to 158,725.38, 219,040.36 and 87,106.57

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Solution

The fourth proportional to 158,725.38, 219,040.36 and 87,106.57 is: 120,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,725.38 : 219,040.36 = 87,106.57 : x
  2. Step 2: Convert to fraction form
    158,725.38/219,040.36 = 87,106.57/x
  3. Step 3: Cross multiply
    158,725.38x = 219,040.36 × 87,106.57
  4. Step 4: Simplify right side
    158,725.38x = 19,079,854,451.17
  5. Step 5: Solve for x
    x = 19,079,854,451.17/158,725.38
  6. Step 6: Final answer
    x = 120,206.70

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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.