Home / 159,338.26-219,885.60-87,719.50

Finding the Fourth Proportional to 159,338.26, 219,885.60 and 87,719.50

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Solution

The fourth proportional to 159,338.26, 219,885.60 and 87,719.50 is: 121,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,338.26 : 219,885.60 = 87,719.50 : x
  2. Step 2: Convert to fraction form
    159,338.26/219,885.60 = 87,719.50/x
  3. Step 3: Cross multiply
    159,338.26x = 219,885.60 × 87,719.50
  4. Step 4: Simplify right side
    159,338.26x = 19,288,254,889.20
  5. Step 5: Solve for x
    x = 19,288,254,889.20/159,338.26
  6. Step 6: Final answer
    x = 121,052.25

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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.