Home / 115,845.93-159,859.65-64,850.04

Finding the Fourth Proportional to 115,845.93, 159,859.65 and 64,850.04

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Solution

The fourth proportional to 115,845.93, 159,859.65 and 64,850.04 is: 89,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,845.93 : 159,859.65 = 64,850.04 : x
  2. Step 2: Convert to fraction form
    115,845.93/159,859.65 = 64,850.04/x
  3. Step 3: Cross multiply
    115,845.93x = 159,859.65 × 64,850.04
  4. Step 4: Simplify right side
    115,845.93x = 10,366,904,696.89
  5. Step 5: Solve for x
    x = 10,366,904,696.89/115,845.93
  6. Step 6: Final answer
    x = 89,488.73

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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.