Home / 148,439.80-222,465.30-131,721.40

Finding the Fourth Proportional to 148,439.80, 222,465.30 and 131,721.40

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Solution

The fourth proportional to 148,439.80, 222,465.30 and 131,721.40 is: 197,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,439.80 : 222,465.30 = 131,721.40 : x
  2. Step 2: Convert to fraction form
    148,439.80/222,465.30 = 131,721.40/x
  3. Step 3: Cross multiply
    148,439.80x = 222,465.30 × 131,721.40
  4. Step 4: Simplify right side
    148,439.80x = 29,303,440,767.42
  5. Step 5: Solve for x
    x = 29,303,440,767.42/148,439.80
  6. Step 6: Final answer
    x = 197,409.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.