Home / 99,928.08-137,898.36-54,606.15

Finding the Fourth Proportional to 99,928.08, 137,898.36 and 54,606.15

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Solution

The fourth proportional to 99,928.08, 137,898.36 and 54,606.15 is: 75,355.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,928.08 : 137,898.36 = 54,606.15 : x
  2. Step 2: Convert to fraction form
    99,928.08/137,898.36 = 54,606.15/x
  3. Step 3: Cross multiply
    99,928.08x = 137,898.36 × 54,606.15
  4. Step 4: Simplify right side
    99,928.08x = 7,530,098,530.91
  5. Step 5: Solve for x
    x = 7,530,098,530.91/99,928.08
  6. Step 6: Final answer
    x = 75,355.18

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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.