Home / 99,834.42-137,770.80-54,512.38

Finding the Fourth Proportional to 99,834.42, 137,770.80 and 54,512.38

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Solution

The fourth proportional to 99,834.42, 137,770.80 and 54,512.38 is: 75,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,834.42 : 137,770.80 = 54,512.38 : x
  2. Step 2: Convert to fraction form
    99,834.42/137,770.80 = 54,512.38/x
  3. Step 3: Cross multiply
    99,834.42x = 137,770.80 × 54,512.38
  4. Step 4: Simplify right side
    99,834.42x = 7,510,213,858.08
  5. Step 5: Solve for x
    x = 7,510,213,858.08/99,834.42
  6. Step 6: Final answer
    x = 75,226.70

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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.