Home / 132,145.56-198,219.96-38,653.20

Finding the Fourth Proportional to 132,145.56, 198,219.96 and 38,653.20

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Solution

The fourth proportional to 132,145.56, 198,219.96 and 38,653.20 is: 57,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,145.56 : 198,219.96 = 38,653.20 : x
  2. Step 2: Convert to fraction form
    132,145.56/198,219.96 = 38,653.20/x
  3. Step 3: Cross multiply
    132,145.56x = 198,219.96 × 38,653.20
  4. Step 4: Simplify right side
    132,145.56x = 7,661,835,757.87
  5. Step 5: Solve for x
    x = 7,661,835,757.87/132,145.56
  6. Step 6: Final answer
    x = 57,980.27

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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.