Home / 106,309.77-159,464.88-99,814.38

Finding the Fourth Proportional to 106,309.77, 159,464.88 and 99,814.38

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Solution

The fourth proportional to 106,309.77, 159,464.88 and 99,814.38 is: 149,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,309.77 : 159,464.88 = 99,814.38 : x
  2. Step 2: Convert to fraction form
    106,309.77/159,464.88 = 99,814.38/x
  3. Step 3: Cross multiply
    106,309.77x = 159,464.88 × 99,814.38
  4. Step 4: Simplify right side
    106,309.77x = 15,916,888,128.97
  5. Step 5: Solve for x
    x = 15,916,888,128.97/106,309.77
  6. Step 6: Final answer
    x = 149,721.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.