Home / 120,217.98-165,899.94-71,841.96

Finding the Fourth Proportional to 120,217.98, 165,899.94 and 71,841.96

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Solution

The fourth proportional to 120,217.98, 165,899.94 and 71,841.96 is: 99,141.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,217.98 : 165,899.94 = 71,841.96 : x
  2. Step 2: Convert to fraction form
    120,217.98/165,899.94 = 71,841.96/x
  3. Step 3: Cross multiply
    120,217.98x = 165,899.94 × 71,841.96
  4. Step 4: Simplify right side
    120,217.98x = 11,918,576,853.48
  5. Step 5: Solve for x
    x = 11,918,576,853.48/120,217.98
  6. Step 6: Final answer
    x = 99,141.38

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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.