Home / 136,286.73-188,066.28-85,297.32

Finding the Fourth Proportional to 136,286.73, 188,066.28 and 85,297.32

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Solution

The fourth proportional to 136,286.73, 188,066.28 and 85,297.32 is: 117,704.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,286.73 : 188,066.28 = 85,297.32 : x
  2. Step 2: Convert to fraction form
    136,286.73/188,066.28 = 85,297.32/x
  3. Step 3: Cross multiply
    136,286.73x = 188,066.28 × 85,297.32
  4. Step 4: Simplify right side
    136,286.73x = 16,041,549,666.37
  5. Step 5: Solve for x
    x = 16,041,549,666.37/136,286.73
  6. Step 6: Final answer
    x = 117,704.41

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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.