Home / 98,564.14-136,078.79-64,141.67

Finding the Fourth Proportional to 98,564.14, 136,078.79 and 64,141.67

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Solution

The fourth proportional to 98,564.14, 136,078.79 and 64,141.67 is: 88,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,564.14 : 136,078.79 = 64,141.67 : x
  2. Step 2: Convert to fraction form
    98,564.14/136,078.79 = 64,141.67/x
  3. Step 3: Cross multiply
    98,564.14x = 136,078.79 × 64,141.67
  4. Step 4: Simplify right side
    98,564.14x = 8,728,320,861.67
  5. Step 5: Solve for x
    x = 8,728,320,861.67/98,564.14
  6. Step 6: Final answer
    x = 88,554.73

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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.