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Finding the Fourth Proportional to 146,141.80, 219,147.90 and 67,215.40

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Solution

The fourth proportional to 146,141.80, 219,147.90 and 67,215.40 is: 100,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,141.80 : 219,147.90 = 67,215.40 : x
  2. Step 2: Convert to fraction form
    146,141.80/219,147.90 = 67,215.40/x
  3. Step 3: Cross multiply
    146,141.80x = 219,147.90 × 67,215.40
  4. Step 4: Simplify right side
    146,141.80x = 14,730,113,757.66
  5. Step 5: Solve for x
    x = 14,730,113,757.66/146,141.80
  6. Step 6: Final answer
    x = 100,793.30

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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.