Home / 149,104.80-205,686.22-88,632.42

Finding the Fourth Proportional to 149,104.80, 205,686.22 and 88,632.42

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Solution

The fourth proportional to 149,104.80, 205,686.22 and 88,632.42 is: 122,266.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,104.80 : 205,686.22 = 88,632.42 : x
  2. Step 2: Convert to fraction form
    149,104.80/205,686.22 = 88,632.42/x
  3. Step 3: Cross multiply
    149,104.80x = 205,686.22 × 88,632.42
  4. Step 4: Simplify right side
    149,104.80x = 18,230,466,996.09
  5. Step 5: Solve for x
    x = 18,230,466,996.09/149,104.80
  6. Step 6: Final answer
    x = 122,266.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.