Home / 132,721.48-198,684.78-127,995.40

Finding the Fourth Proportional to 132,721.48, 198,684.78 and 127,995.40

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Solution

The fourth proportional to 132,721.48, 198,684.78 and 127,995.40 is: 191,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,721.48 : 198,684.78 = 127,995.40 : x
  2. Step 2: Convert to fraction form
    132,721.48/198,684.78 = 127,995.40/x
  3. Step 3: Cross multiply
    132,721.48x = 198,684.78 × 127,995.40
  4. Step 4: Simplify right side
    132,721.48x = 25,430,737,890.01
  5. Step 5: Solve for x
    x = 25,430,737,890.01/132,721.48
  6. Step 6: Final answer
    x = 191,609.81

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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.