Home / 115,242.16-159,022.56-64,250.09

Finding the Fourth Proportional to 115,242.16, 159,022.56 and 64,250.09

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Solution

The fourth proportional to 115,242.16, 159,022.56 and 64,250.09 is: 88,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,242.16 : 159,022.56 = 64,250.09 : x
  2. Step 2: Convert to fraction form
    115,242.16/159,022.56 = 64,250.09/x
  3. Step 3: Cross multiply
    115,242.16x = 159,022.56 × 64,250.09
  4. Step 4: Simplify right side
    115,242.16x = 10,217,214,367.29
  5. Step 5: Solve for x
    x = 10,217,214,367.29/115,242.16
  6. Step 6: Final answer
    x = 88,658.65

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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.