Home / 99,716.16-137,605.79-54,395.18

Finding the Fourth Proportional to 99,716.16, 137,605.79 and 54,395.18

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Solution

The fourth proportional to 99,716.16, 137,605.79 and 54,395.18 is: 75,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,716.16 : 137,605.79 = 54,395.18 : x
  2. Step 2: Convert to fraction form
    99,716.16/137,605.79 = 54,395.18/x
  3. Step 3: Cross multiply
    99,716.16x = 137,605.79 × 54,395.18
  4. Step 4: Simplify right side
    99,716.16x = 7,485,090,756.09
  5. Step 5: Solve for x
    x = 7,485,090,756.09/99,716.16
  6. Step 6: Final answer
    x = 75,063.97

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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.