Home / 120,281.96-165,986.82-66,567.02

Finding the Fourth Proportional to 120,281.96, 165,986.82 and 66,567.02

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Solution

The fourth proportional to 120,281.96, 165,986.82 and 66,567.02 is: 91,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,281.96 : 165,986.82 = 66,567.02 : x
  2. Step 2: Convert to fraction form
    120,281.96/165,986.82 = 66,567.02/x
  3. Step 3: Cross multiply
    120,281.96x = 165,986.82 × 66,567.02
  4. Step 4: Simplify right side
    120,281.96x = 11,049,247,136.74
  5. Step 5: Solve for x
    x = 11,049,247,136.74/120,281.96
  6. Step 6: Final answer
    x = 91,861.21

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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.