Home / 120,923.20-181,166.10-98,615.80

Finding the Fourth Proportional to 120,923.20, 181,166.10 and 98,615.80

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Solution

The fourth proportional to 120,923.20, 181,166.10 and 98,615.80 is: 147,745.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,923.20 : 181,166.10 = 98,615.80 : x
  2. Step 2: Convert to fraction form
    120,923.20/181,166.10 = 98,615.80/x
  3. Step 3: Cross multiply
    120,923.20x = 181,166.10 × 98,615.80
  4. Step 4: Simplify right side
    120,923.20x = 17,865,839,884.38
  5. Step 5: Solve for x
    x = 17,865,839,884.38/120,923.20
  6. Step 6: Final answer
    x = 147,745.34

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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.