Home / 99,928.31-137,901.44-54,606.31

Finding the Fourth Proportional to 99,928.31, 137,901.44 and 54,606.31

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Solution

The fourth proportional to 99,928.31, 137,901.44 and 54,606.31 is: 75,356.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,928.31 : 137,901.44 = 54,606.31 : x
  2. Step 2: Convert to fraction form
    99,928.31/137,901.44 = 54,606.31/x
  3. Step 3: Cross multiply
    99,928.31x = 137,901.44 × 54,606.31
  4. Step 4: Simplify right side
    99,928.31x = 7,530,288,573.85
  5. Step 5: Solve for x
    x = 7,530,288,573.85/99,928.31
  6. Step 6: Final answer
    x = 75,356.91

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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.