Home / 120,281.53-165,988.72-66,566.56

Finding the Fourth Proportional to 120,281.53, 165,988.72 and 66,566.56

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Solution

The fourth proportional to 120,281.53, 165,988.72 and 66,566.56 is: 91,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,281.53 : 165,988.72 = 66,566.56 : x
  2. Step 2: Convert to fraction form
    120,281.53/165,988.72 = 66,566.56/x
  3. Step 3: Cross multiply
    120,281.53x = 165,988.72 × 66,566.56
  4. Step 4: Simplify right side
    120,281.53x = 11,049,298,089.20
  5. Step 5: Solve for x
    x = 11,049,298,089.20/120,281.53
  6. Step 6: Final answer
    x = 91,861.97

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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.