Home / 135,274.85-186,684.79-74,844.51

Finding the Fourth Proportional to 135,274.85, 186,684.79 and 74,844.51

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Solution

The fourth proportional to 135,274.85, 186,684.79 and 74,844.51 is: 103,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,274.85 : 186,684.79 = 74,844.51 : x
  2. Step 2: Convert to fraction form
    135,274.85/186,684.79 = 74,844.51/x
  3. Step 3: Cross multiply
    135,274.85x = 186,684.79 × 74,844.51
  4. Step 4: Simplify right side
    135,274.85x = 13,972,331,444.89
  5. Step 5: Solve for x
    x = 13,972,331,444.89/135,274.85
  6. Step 6: Final answer
    x = 103,288.47

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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.