Home / 148,738.43-205,257.89-80,754.07

Finding the Fourth Proportional to 148,738.43, 205,257.89 and 80,754.07

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Solution

The fourth proportional to 148,738.43, 205,257.89 and 80,754.07 is: 111,440.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,738.43 : 205,257.89 = 80,754.07 : x
  2. Step 2: Convert to fraction form
    148,738.43/205,257.89 = 80,754.07/x
  3. Step 3: Cross multiply
    148,738.43x = 205,257.89 × 80,754.07
  4. Step 4: Simplify right side
    148,738.43x = 16,575,410,017.11
  5. Step 5: Solve for x
    x = 16,575,410,017.11/148,738.43
  6. Step 6: Final answer
    x = 111,440.00

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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.