Home / 135,170.64-186,536.66-74,742.35

Finding the Fourth Proportional to 135,170.64, 186,536.66 and 74,742.35

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Solution

The fourth proportional to 135,170.64, 186,536.66 and 74,742.35 is: 103,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,170.64 : 186,536.66 = 74,742.35 : x
  2. Step 2: Convert to fraction form
    135,170.64/186,536.66 = 74,742.35/x
  3. Step 3: Cross multiply
    135,170.64x = 186,536.66 × 74,742.35
  4. Step 4: Simplify right side
    135,170.64x = 13,942,187,023.16
  5. Step 5: Solve for x
    x = 13,942,187,023.16/135,170.64
  6. Step 6: Final answer
    x = 103,145.08

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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.