Home / 115,758.39-159,767.03-68,011.71

Finding the Fourth Proportional to 115,758.39, 159,767.03 and 68,011.71

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Solution

The fourth proportional to 115,758.39, 159,767.03 and 68,011.71 is: 93,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,758.39 : 159,767.03 = 68,011.71 : x
  2. Step 2: Convert to fraction form
    115,758.39/159,767.03 = 68,011.71/x
  3. Step 3: Cross multiply
    115,758.39x = 159,767.03 × 68,011.71
  4. Step 4: Simplify right side
    115,758.39x = 10,866,028,571.86
  5. Step 5: Solve for x
    x = 10,866,028,571.86/115,758.39
  6. Step 6: Final answer
    x = 93,868.17

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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.