Home / 120,185.19-165,841.17-66,462.90

Finding the Fourth Proportional to 120,185.19, 165,841.17 and 66,462.90

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Solution

The fourth proportional to 120,185.19, 165,841.17 and 66,462.90 is: 91,710.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,185.19 : 165,841.17 = 66,462.90 : x
  2. Step 2: Convert to fraction form
    120,185.19/165,841.17 = 66,462.90/x
  3. Step 3: Cross multiply
    120,185.19x = 165,841.17 × 66,462.90
  4. Step 4: Simplify right side
    120,185.19x = 11,022,285,097.59
  5. Step 5: Solve for x
    x = 11,022,285,097.59/120,185.19
  6. Step 6: Final answer
    x = 91,710.84

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1.5x scale

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.