Home / 89,281.92-134,132-84,238.24

Finding the Fourth Proportional to 89,281.92, 134,132 and 84,238.24

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Solution

The fourth proportional to 89,281.92, 134,132 and 84,238.24 is: 126,554.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,281.92 : 134,132 = 84,238.24 : x
  2. Step 2: Convert to fraction form
    89,281.92/134,132 = 84,238.24/x
  3. Step 3: Cross multiply
    89,281.92x = 134,132 × 84,238.24
  4. Step 4: Simplify right side
    89,281.92x = 11,299,043,607.68
  5. Step 5: Solve for x
    x = 11,299,043,607.68/89,281.92
  6. Step 6: Final answer
    x = 126,554.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.