Home / 99,908.04-137,614.68-69,639.36

Finding the Fourth Proportional to 99,908.04, 137,614.68 and 69,639.36

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Solution

The fourth proportional to 99,908.04, 137,614.68 and 69,639.36 is: 95,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.04 : 137,614.68 = 69,639.36 : x
  2. Step 2: Convert to fraction form
    99,908.04/137,614.68 = 69,639.36/x
  3. Step 3: Cross multiply
    99,908.04x = 137,614.68 × 69,639.36
  4. Step 4: Simplify right side
    99,908.04x = 9,583,398,241.80
  5. Step 5: Solve for x
    x = 9,583,398,241.80/99,908.04
  6. Step 6: Final answer
    x = 95,922.19

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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.