Home / 123,165.15-169,967.83-66,576.52

Finding the Fourth Proportional to 123,165.15, 169,967.83 and 66,576.52

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Solution

The fourth proportional to 123,165.15, 169,967.83 and 66,576.52 is: 91,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,165.15 : 169,967.83 = 66,576.52 : x
  2. Step 2: Convert to fraction form
    123,165.15/169,967.83 = 66,576.52/x
  3. Step 3: Cross multiply
    123,165.15x = 169,967.83 × 66,576.52
  4. Step 4: Simplify right side
    123,165.15x = 11,315,866,633.35
  5. Step 5: Solve for x
    x = 11,315,866,633.35/123,165.15
  6. Step 6: Final answer
    x = 91,875.56

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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.