Home / 166,762.09-230,129.40-91,310.59

Finding the Fourth Proportional to 166,762.09, 230,129.40 and 91,310.59

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Solution

The fourth proportional to 166,762.09, 230,129.40 and 91,310.59 is: 126,007.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,762.09 : 230,129.40 = 91,310.59 : x
  2. Step 2: Convert to fraction form
    166,762.09/230,129.40 = 91,310.59/x
  3. Step 3: Cross multiply
    166,762.09x = 230,129.40 × 91,310.59
  4. Step 4: Simplify right side
    166,762.09x = 21,013,251,290.35
  5. Step 5: Solve for x
    x = 21,013,251,290.35/166,762.09
  6. Step 6: Final answer
    x = 126,007.36

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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.