Home / 146,141.20-219,211.80-137,976.40

Finding the Fourth Proportional to 146,141.20, 219,211.80 and 137,976.40

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Solution

The fourth proportional to 146,141.20, 219,211.80 and 137,976.40 is: 206,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,141.20 : 219,211.80 = 137,976.40 : x
  2. Step 2: Convert to fraction form
    146,141.20/219,211.80 = 137,976.40/x
  3. Step 3: Cross multiply
    146,141.20x = 219,211.80 × 137,976.40
  4. Step 4: Simplify right side
    146,141.20x = 30,246,055,001.52
  5. Step 5: Solve for x
    x = 30,246,055,001.52/146,141.20
  6. Step 6: Final answer
    x = 206,964.60

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1.5x scale

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.