Home / 135,151.27-186,493.49-74,706.64

Finding the Fourth Proportional to 135,151.27, 186,493.49 and 74,706.64

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Solution

The fourth proportional to 135,151.27, 186,493.49 and 74,706.64 is: 103,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,151.27 : 186,493.49 = 74,706.64 : x
  2. Step 2: Convert to fraction form
    135,151.27/186,493.49 = 74,706.64/x
  3. Step 3: Cross multiply
    135,151.27x = 186,493.49 × 74,706.64
  4. Step 4: Simplify right side
    135,151.27x = 13,932,301,460.16
  5. Step 5: Solve for x
    x = 13,932,301,460.16/135,151.27
  6. Step 6: Final answer
    x = 103,086.72

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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.