Home / 132,415.14-198,622.78-38,986.50

Finding the Fourth Proportional to 132,415.14, 198,622.78 and 38,986.50

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Solution

The fourth proportional to 132,415.14, 198,622.78 and 38,986.50 is: 58,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,415.14 : 198,622.78 = 38,986.50 : x
  2. Step 2: Convert to fraction form
    132,415.14/198,622.78 = 38,986.50/x
  3. Step 3: Cross multiply
    132,415.14x = 198,622.78 × 38,986.50
  4. Step 4: Simplify right side
    132,415.14x = 7,743,607,012.47
  5. Step 5: Solve for x
    x = 7,743,607,012.47/132,415.14
  6. Step 6: Final answer
    x = 58,479.77

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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.