Home / 132,128.38-198,192.02-47,868.79

Finding the Fourth Proportional to 132,128.38, 198,192.02 and 47,868.79

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Solution

The fourth proportional to 132,128.38, 198,192.02 and 47,868.79 is: 71,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.38 : 198,192.02 = 47,868.79 : x
  2. Step 2: Convert to fraction form
    132,128.38/198,192.02 = 47,868.79/x
  3. Step 3: Cross multiply
    132,128.38x = 198,192.02 × 47,868.79
  4. Step 4: Simplify right side
    132,128.38x = 9,487,211,821.84
  5. Step 5: Solve for x
    x = 9,487,211,821.84/132,128.38
  6. Step 6: Final answer
    x = 71,802.98

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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.