Home / 158,879.18-219,253.38-87,262.76

Finding the Fourth Proportional to 158,879.18, 219,253.38 and 87,262.76

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Solution

The fourth proportional to 158,879.18, 219,253.38 and 87,262.76 is: 120,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,879.18 : 219,253.38 = 87,262.76 : x
  2. Step 2: Convert to fraction form
    158,879.18/219,253.38 = 87,262.76/x
  3. Step 3: Cross multiply
    158,879.18x = 219,253.38 × 87,262.76
  4. Step 4: Simplify right side
    158,879.18x = 19,132,655,078.13
  5. Step 5: Solve for x
    x = 19,132,655,078.13/158,879.18
  6. Step 6: Final answer
    x = 120,422.67

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1.5x scale

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.