Home / 147,921.20-221,881.80-91,824.65

Finding the Fourth Proportional to 147,921.20, 221,881.80 and 91,824.65

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Solution

The fourth proportional to 147,921.20, 221,881.80 and 91,824.65 is: 137,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,921.20 : 221,881.80 = 91,824.65 : x
  2. Step 2: Convert to fraction form
    147,921.20/221,881.80 = 91,824.65/x
  3. Step 3: Cross multiply
    147,921.20x = 221,881.80 × 91,824.65
  4. Step 4: Simplify right side
    147,921.20x = 20,374,218,626.37
  5. Step 5: Solve for x
    x = 20,374,218,626.37/147,921.20
  6. Step 6: Final answer
    x = 137,736.98

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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.