Home / 135,274.35-186,684.10-74,844.01

Finding the Fourth Proportional to 135,274.35, 186,684.10 and 74,844.01

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Solution

The fourth proportional to 135,274.35, 186,684.10 and 74,844.01 is: 103,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,274.35 : 186,684.10 = 74,844.01 : x
  2. Step 2: Convert to fraction form
    135,274.35/186,684.10 = 74,844.01/x
  3. Step 3: Cross multiply
    135,274.35x = 186,684.10 × 74,844.01
  4. Step 4: Simplify right side
    135,274.35x = 13,972,186,180.53
  5. Step 5: Solve for x
    x = 13,972,186,180.53/135,274.35
  6. Step 6: Final answer
    x = 103,287.78

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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.