Home / 132,435.05-198,434.11-76,322.30

Finding the Fourth Proportional to 132,435.05, 198,434.11 and 76,322.30

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Solution

The fourth proportional to 132,435.05, 198,434.11 and 76,322.30 is: 114,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,435.05 : 198,434.11 = 76,322.30 : x
  2. Step 2: Convert to fraction form
    132,435.05/198,434.11 = 76,322.30/x
  3. Step 3: Cross multiply
    132,435.05x = 198,434.11 × 76,322.30
  4. Step 4: Simplify right side
    132,435.05x = 15,144,946,986.76
  5. Step 5: Solve for x
    x = 15,144,946,986.76/132,435.05
  6. Step 6: Final answer
    x = 114,357.55

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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.