Home / 115,419.06-159,286.34-64,441.83

Finding the Fourth Proportional to 115,419.06, 159,286.34 and 64,441.83

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Solution

The fourth proportional to 115,419.06, 159,286.34 and 64,441.83 is: 88,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,419.06 : 159,286.34 = 64,441.83 : x
  2. Step 2: Convert to fraction form
    115,419.06/159,286.34 = 64,441.83/x
  3. Step 3: Cross multiply
    115,419.06x = 159,286.34 × 64,441.83
  4. Step 4: Simplify right side
    115,419.06x = 10,264,702,921.39
  5. Step 5: Solve for x
    x = 10,264,702,921.39/115,419.06
  6. Step 6: Final answer
    x = 88,934.21

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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.