Home / 146,404.20-219,606.30-128,908.20

Finding the Fourth Proportional to 146,404.20, 219,606.30 and 128,908.20

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Solution

The fourth proportional to 146,404.20, 219,606.30 and 128,908.20 is: 193,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,404.20 : 219,606.30 = 128,908.20 : x
  2. Step 2: Convert to fraction form
    146,404.20/219,606.30 = 128,908.20/x
  3. Step 3: Cross multiply
    146,404.20x = 219,606.30 × 128,908.20
  4. Step 4: Simplify right side
    146,404.20x = 28,309,052,841.66
  5. Step 5: Solve for x
    x = 28,309,052,841.66/146,404.20
  6. Step 6: Final answer
    x = 193,362.30

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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.