Home / 147,947.20-221,791.20-88,806.40

Finding the Fourth Proportional to 147,947.20, 221,791.20 and 88,806.40

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Solution

The fourth proportional to 147,947.20, 221,791.20 and 88,806.40 is: 133,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,947.20 : 221,791.20 = 88,806.40 : x
  2. Step 2: Convert to fraction form
    147,947.20/221,791.20 = 88,806.40/x
  3. Step 3: Cross multiply
    147,947.20x = 221,791.20 × 88,806.40
  4. Step 4: Simplify right side
    147,947.20x = 19,696,478,023.68
  5. Step 5: Solve for x
    x = 19,696,478,023.68/147,947.20
  6. Step 6: Final answer
    x = 133,131.81

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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.