Home / 147,912.20-221,738.70-88,771.40

Finding the Fourth Proportional to 147,912.20, 221,738.70 and 88,771.40

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Solution

The fourth proportional to 147,912.20, 221,738.70 and 88,771.40 is: 133,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,912.20 : 221,738.70 = 88,771.40 : x
  2. Step 2: Convert to fraction form
    147,912.20/221,738.70 = 88,771.40/x
  3. Step 3: Cross multiply
    147,912.20x = 221,738.70 × 88,771.40
  4. Step 4: Simplify right side
    147,912.20x = 19,684,054,833.18
  5. Step 5: Solve for x
    x = 19,684,054,833.18/147,912.20
  6. Step 6: Final answer
    x = 133,079.32

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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.