Home / 99,896.25-137,854.55-54,574.43

Finding the Fourth Proportional to 99,896.25, 137,854.55 and 54,574.43

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Solution

The fourth proportional to 99,896.25, 137,854.55 and 54,574.43 is: 75,311.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,896.25 : 137,854.55 = 54,574.43 : x
  2. Step 2: Convert to fraction form
    99,896.25/137,854.55 = 54,574.43/x
  3. Step 3: Cross multiply
    99,896.25x = 137,854.55 × 54,574.43
  4. Step 4: Simplify right side
    99,896.25x = 7,523,332,936.32
  5. Step 5: Solve for x
    x = 7,523,332,936.32/99,896.25
  6. Step 6: Final answer
    x = 75,311.47

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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.