Home / 166,761.09-230,128.02-91,309.59

Finding the Fourth Proportional to 166,761.09, 230,128.02 and 91,309.59

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Solution

The fourth proportional to 166,761.09, 230,128.02 and 91,309.59 is: 126,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,761.09 : 230,128.02 = 91,309.59 : x
  2. Step 2: Convert to fraction form
    166,761.09/230,128.02 = 91,309.59/x
  3. Step 3: Cross multiply
    166,761.09x = 230,128.02 × 91,309.59
  4. Step 4: Simplify right side
    166,761.09x = 21,012,895,153.71
  5. Step 5: Solve for x
    x = 21,012,895,153.71/166,761.09
  6. Step 6: Final answer
    x = 126,005.98

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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.