Home / 148,821.78-205,427.97-98,536.98

Finding the Fourth Proportional to 148,821.78, 205,427.97 and 98,536.98

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Solution

The fourth proportional to 148,821.78, 205,427.97 and 98,536.98 is: 136,016.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,821.78 : 205,427.97 = 98,536.98 : x
  2. Step 2: Convert to fraction form
    148,821.78/205,427.97 = 98,536.98/x
  3. Step 3: Cross multiply
    148,821.78x = 205,427.97 × 98,536.98
  4. Step 4: Simplify right side
    148,821.78x = 20,242,251,771.33
  5. Step 5: Solve for x
    x = 20,242,251,771.33/148,821.78
  6. Step 6: Final answer
    x = 136,016.73

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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.