Home / 120,351.02-166,162.73-83,625.80

Finding the Fourth Proportional to 120,351.02, 166,162.73 and 83,625.80

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Solution

The fourth proportional to 120,351.02, 166,162.73 and 83,625.80 is: 115,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,351.02 : 166,162.73 = 83,625.80 : x
  2. Step 2: Convert to fraction form
    120,351.02/166,162.73 = 83,625.80/x
  3. Step 3: Cross multiply
    120,351.02x = 166,162.73 × 83,625.80
  4. Step 4: Simplify right side
    120,351.02x = 13,895,489,977.49
  5. Step 5: Solve for x
    x = 13,895,489,977.49/120,351.02
  6. Step 6: Final answer
    x = 115,458.02

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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.