Home / 137,977.56-206,912.88-53,725.68

Finding the Fourth Proportional to 137,977.56, 206,912.88 and 53,725.68

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Solution

The fourth proportional to 137,977.56, 206,912.88 and 53,725.68 is: 80,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,977.56 : 206,912.88 = 53,725.68 : x
  2. Step 2: Convert to fraction form
    137,977.56/206,912.88 = 53,725.68/x
  3. Step 3: Cross multiply
    137,977.56x = 206,912.88 × 53,725.68
  4. Step 4: Simplify right side
    137,977.56x = 11,116,535,178.76
  5. Step 5: Solve for x
    x = 11,116,535,178.76/137,977.56
  6. Step 6: Final answer
    x = 80,567.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.