Home / 115,891.13-159,933.29-64,903.73

Finding the Fourth Proportional to 115,891.13, 159,933.29 and 64,903.73

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Solution

The fourth proportional to 115,891.13, 159,933.29 and 64,903.73 is: 89,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,891.13 : 159,933.29 = 64,903.73 : x
  2. Step 2: Convert to fraction form
    115,891.13/159,933.29 = 64,903.73/x
  3. Step 3: Cross multiply
    115,891.13x = 159,933.29 × 64,903.73
  4. Step 4: Simplify right side
    115,891.13x = 10,380,267,072.17
  5. Step 5: Solve for x
    x = 10,380,267,072.17/115,891.13
  6. Step 6: Final answer
    x = 89,569.12

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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.