Home / 132,415.13-198,622.79-38,986.49

Finding the Fourth Proportional to 132,415.13, 198,622.79 and 38,986.49

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Solution

The fourth proportional to 132,415.13, 198,622.79 and 38,986.49 is: 58,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,415.13 : 198,622.79 = 38,986.49 : x
  2. Step 2: Convert to fraction form
    132,415.13/198,622.79 = 38,986.49/x
  3. Step 3: Cross multiply
    132,415.13x = 198,622.79 × 38,986.49
  4. Step 4: Simplify right side
    132,415.13x = 7,743,605,416.11
  5. Step 5: Solve for x
    x = 7,743,605,416.11/132,415.13
  6. Step 6: Final answer
    x = 58,479.76

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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.