Home / 98,580.24-136,104.30-87,951.42

Finding the Fourth Proportional to 98,580.24, 136,104.30 and 87,951.42

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Solution

The fourth proportional to 98,580.24, 136,104.30 and 87,951.42 is: 121,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,580.24 : 136,104.30 = 87,951.42 : x
  2. Step 2: Convert to fraction form
    98,580.24/136,104.30 = 87,951.42/x
  3. Step 3: Cross multiply
    98,580.24x = 136,104.30 × 87,951.42
  4. Step 4: Simplify right side
    98,580.24x = 11,970,566,453.11
  5. Step 5: Solve for x
    x = 11,970,566,453.11/98,580.24
  6. Step 6: Final answer
    x = 121,429.67

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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.