Home / 120,272.24-165,973.20-66,554.03

Finding the Fourth Proportional to 120,272.24, 165,973.20 and 66,554.03

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Solution

The fourth proportional to 120,272.24, 165,973.20 and 66,554.03 is: 91,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,272.24 : 165,973.20 = 66,554.03 : x
  2. Step 2: Convert to fraction form
    120,272.24/165,973.20 = 66,554.03/x
  3. Step 3: Cross multiply
    120,272.24x = 165,973.20 × 66,554.03
  4. Step 4: Simplify right side
    120,272.24x = 11,046,185,332.00
  5. Step 5: Solve for x
    x = 11,046,185,332.00/120,272.24
  6. Step 6: Final answer
    x = 91,843.18

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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.