Home / 99,936.18-137,913.76-54,616.08

Finding the Fourth Proportional to 99,936.18, 137,913.76 and 54,616.08

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Solution

The fourth proportional to 99,936.18, 137,913.76 and 54,616.08 is: 75,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,936.18 : 137,913.76 = 54,616.08 : x
  2. Step 2: Convert to fraction form
    99,936.18/137,913.76 = 54,616.08/x
  3. Step 3: Cross multiply
    99,936.18x = 137,913.76 × 54,616.08
  4. Step 4: Simplify right side
    99,936.18x = 7,532,308,949.26
  5. Step 5: Solve for x
    x = 7,532,308,949.26/99,936.18
  6. Step 6: Final answer
    x = 75,371.19

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1.5x scale

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.