Home / 223,426.50-335,034.16-81,172.58

Finding the Fourth Proportional to 223,426.50, 335,034.16 and 81,172.58

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Solution

The fourth proportional to 223,426.50, 335,034.16 and 81,172.58 is: 121,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,426.50 : 335,034.16 = 81,172.58 : x
  2. Step 2: Convert to fraction form
    223,426.50/335,034.16 = 81,172.58/x
  3. Step 3: Cross multiply
    223,426.50x = 335,034.16 × 81,172.58
  4. Step 4: Simplify right side
    223,426.50x = 27,195,585,277.23
  5. Step 5: Solve for x
    x = 27,195,585,277.23/223,426.50
  6. Step 6: Final answer
    x = 121,720.50

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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.