Home / 115,272.10-159,072.33-64,286.38

Finding the Fourth Proportional to 115,272.10, 159,072.33 and 64,286.38

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Solution

The fourth proportional to 115,272.10, 159,072.33 and 64,286.38 is: 88,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,272.10 : 159,072.33 = 64,286.38 : x
  2. Step 2: Convert to fraction form
    115,272.10/159,072.33 = 64,286.38/x
  3. Step 3: Cross multiply
    115,272.10x = 159,072.33 × 64,286.38
  4. Step 4: Simplify right side
    115,272.10x = 10,226,184,253.87
  5. Step 5: Solve for x
    x = 10,226,184,253.87/115,272.10
  6. Step 6: Final answer
    x = 88,713.44

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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.