Home / 148,994.42-205,610.86-81,011.40

Finding the Fourth Proportional to 148,994.42, 205,610.86 and 81,011.40

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Solution

The fourth proportional to 148,994.42, 205,610.86 and 81,011.40 is: 111,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,994.42 : 205,610.86 = 81,011.40 : x
  2. Step 2: Convert to fraction form
    148,994.42/205,610.86 = 81,011.40/x
  3. Step 3: Cross multiply
    148,994.42x = 205,610.86 × 81,011.40
  4. Step 4: Simplify right side
    148,994.42x = 16,656,823,076.62
  5. Step 5: Solve for x
    x = 16,656,823,076.62/148,994.42
  6. Step 6: Final answer
    x = 111,794.95

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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.