Home / 132,458.10-198,233.55-79,905.30

Finding the Fourth Proportional to 132,458.10, 198,233.55 and 79,905.30

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Solution

The fourth proportional to 132,458.10, 198,233.55 and 79,905.30 is: 119,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,458.10 : 198,233.55 = 79,905.30 : x
  2. Step 2: Convert to fraction form
    132,458.10/198,233.55 = 79,905.30/x
  3. Step 3: Cross multiply
    132,458.10x = 198,233.55 × 79,905.30
  4. Step 4: Simplify right side
    132,458.10x = 15,839,911,282.82
  5. Step 5: Solve for x
    x = 15,839,911,282.82/132,458.10
  6. Step 6: Final answer
    x = 119,584.32

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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.