Home / 120,282.22-165,985.34-66,569.50

Finding the Fourth Proportional to 120,282.22, 165,985.34 and 66,569.50

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Solution

The fourth proportional to 120,282.22, 165,985.34 and 66,569.50 is: 91,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,282.22 : 165,985.34 = 66,569.50 : x
  2. Step 2: Convert to fraction form
    120,282.22/165,985.34 = 66,569.50/x
  3. Step 3: Cross multiply
    120,282.22x = 165,985.34 × 66,569.50
  4. Step 4: Simplify right side
    120,282.22x = 11,049,561,091.13
  5. Step 5: Solve for x
    x = 11,049,561,091.13/120,282.22
  6. Step 6: Final answer
    x = 91,863.63

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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.