Home / 242,943.12-335,266.56-135,517.68

Finding the Fourth Proportional to 242,943.12, 335,266.56 and 135,517.68

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Solution

The fourth proportional to 242,943.12, 335,266.56 and 135,517.68 is: 187,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,943.12 : 335,266.56 = 135,517.68 : x
  2. Step 2: Convert to fraction form
    242,943.12/335,266.56 = 135,517.68/x
  3. Step 3: Cross multiply
    242,943.12x = 335,266.56 × 135,517.68
  4. Step 4: Simplify right side
    242,943.12x = 45,434,546,392.78
  5. Step 5: Solve for x
    x = 45,434,546,392.78/242,943.12
  6. Step 6: Final answer
    x = 187,017.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.