Home / 115,317.96-159,146.13-64,338.38

Finding the Fourth Proportional to 115,317.96, 159,146.13 and 64,338.38

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Solution

The fourth proportional to 115,317.96, 159,146.13 and 64,338.38 is: 88,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,317.96 : 159,146.13 = 64,338.38 : x
  2. Step 2: Convert to fraction form
    115,317.96/159,146.13 = 64,338.38/x
  3. Step 3: Cross multiply
    115,317.96x = 159,146.13 × 64,338.38
  4. Step 4: Simplify right side
    115,317.96x = 10,239,204,187.47
  5. Step 5: Solve for x
    x = 10,239,204,187.47/115,317.96
  6. Step 6: Final answer
    x = 88,791.06

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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.