Home / 136,621.89-188,473.86-88,857.81

Finding the Fourth Proportional to 136,621.89, 188,473.86 and 88,857.81

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Solution

The fourth proportional to 136,621.89, 188,473.86 and 88,857.81 is: 122,581.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,621.89 : 188,473.86 = 88,857.81 : x
  2. Step 2: Convert to fraction form
    136,621.89/188,473.86 = 88,857.81/x
  3. Step 3: Cross multiply
    136,621.89x = 188,473.86 × 88,857.81
  4. Step 4: Simplify right side
    136,621.89x = 16,747,374,441.85
  5. Step 5: Solve for x
    x = 16,747,374,441.85/136,621.89
  6. Step 6: Final answer
    x = 122,581.93

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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.