Home / 146,721.20-220,168.20-53,236.40

Finding the Fourth Proportional to 146,721.20, 220,168.20 and 53,236.40

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Solution

The fourth proportional to 146,721.20, 220,168.20 and 53,236.40 is: 79,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,721.20 : 220,168.20 = 53,236.40 : x
  2. Step 2: Convert to fraction form
    146,721.20/220,168.20 = 53,236.40/x
  3. Step 3: Cross multiply
    146,721.20x = 220,168.20 × 53,236.40
  4. Step 4: Simplify right side
    146,721.20x = 11,720,962,362.48
  5. Step 5: Solve for x
    x = 11,720,962,362.48/146,721.20
  6. Step 6: Final answer
    x = 79,885.95

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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.