Home / 99,928.85-137,903.64-54,608.74

Finding the Fourth Proportional to 99,928.85, 137,903.64 and 54,608.74

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Solution

The fourth proportional to 99,928.85, 137,903.64 and 54,608.74 is: 75,361.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,928.85 : 137,903.64 = 54,608.74 : x
  2. Step 2: Convert to fraction form
    99,928.85/137,903.64 = 54,608.74/x
  3. Step 3: Cross multiply
    99,928.85x = 137,903.64 × 54,608.74
  4. Step 4: Simplify right side
    99,928.85x = 7,530,744,595.49
  5. Step 5: Solve for x
    x = 7,530,744,595.49/99,928.85
  6. Step 6: Final answer
    x = 75,361.06

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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.