Home / 166,758.12-230,128.74-91,313.64

Finding the Fourth Proportional to 166,758.12, 230,128.74 and 91,313.64

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Solution

The fourth proportional to 166,758.12, 230,128.74 and 91,313.64 is: 126,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,758.12 : 230,128.74 = 91,313.64 : x
  2. Step 2: Convert to fraction form
    166,758.12/230,128.74 = 91,313.64/x
  3. Step 3: Cross multiply
    166,758.12x = 230,128.74 × 91,313.64
  4. Step 4: Simplify right side
    166,758.12x = 21,013,892,918.01
  5. Step 5: Solve for x
    x = 21,013,892,918.01/166,758.12
  6. Step 6: Final answer
    x = 126,014.21

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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.