Home / 120,112.02-165,745.89-66,398.00

Finding the Fourth Proportional to 120,112.02, 165,745.89 and 66,398.00

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Solution

The fourth proportional to 120,112.02, 165,745.89 and 66,398.00 is: 91,624.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,112.02 : 165,745.89 = 66,398.00 : x
  2. Step 2: Convert to fraction form
    120,112.02/165,745.89 = 66,398.00/x
  3. Step 3: Cross multiply
    120,112.02x = 165,745.89 × 66,398.00
  4. Step 4: Simplify right side
    120,112.02x = 11,005,194,775.49
  5. Step 5: Solve for x
    x = 11,005,194,775.49/120,112.02
  6. Step 6: Final answer
    x = 91,624.43

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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.