Home / 135,288.96-186,682.76-74,851.64

Finding the Fourth Proportional to 135,288.96, 186,682.76 and 74,851.64

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Solution

The fourth proportional to 135,288.96, 186,682.76 and 74,851.64 is: 103,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,288.96 : 186,682.76 = 74,851.64 : x
  2. Step 2: Convert to fraction form
    135,288.96/186,682.76 = 74,851.64/x
  3. Step 3: Cross multiply
    135,288.96x = 186,682.76 × 74,851.64
  4. Step 4: Simplify right side
    135,288.96x = 13,973,510,745.73
  5. Step 5: Solve for x
    x = 13,973,510,745.73/135,288.96
  6. Step 6: Final answer
    x = 103,286.41

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1.5x scale

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.