Home / 158,736.60-219,049.65-87,117.84

Finding the Fourth Proportional to 158,736.60, 219,049.65 and 87,117.84

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Solution

The fourth proportional to 158,736.60, 219,049.65 and 87,117.84 is: 120,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,736.60 : 219,049.65 = 87,117.84 : x
  2. Step 2: Convert to fraction form
    158,736.60/219,049.65 = 87,117.84/x
  3. Step 3: Cross multiply
    158,736.60x = 219,049.65 × 87,117.84
  4. Step 4: Simplify right side
    158,736.60x = 19,083,132,360.76
  5. Step 5: Solve for x
    x = 19,083,132,360.76/158,736.60
  6. Step 6: Final answer
    x = 120,218.86

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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.