Home / 148,713.76-205,226.58-80,731.36

Finding the Fourth Proportional to 148,713.76, 205,226.58 and 80,731.36

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Solution

The fourth proportional to 148,713.76, 205,226.58 and 80,731.36 is: 111,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,713.76 : 205,226.58 = 80,731.36 : x
  2. Step 2: Convert to fraction form
    148,713.76/205,226.58 = 80,731.36/x
  3. Step 3: Cross multiply
    148,713.76x = 205,226.58 × 80,731.36
  4. Step 4: Simplify right side
    148,713.76x = 16,568,220,911.55
  5. Step 5: Solve for x
    x = 16,568,220,911.55/148,713.76
  6. Step 6: Final answer
    x = 111,410.14

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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.