Home / 119,986.50-165,567.16-66,268.30

Finding the Fourth Proportional to 119,986.50, 165,567.16 and 66,268.30

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Solution

The fourth proportional to 119,986.50, 165,567.16 and 66,268.30 is: 91,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,986.50 : 165,567.16 = 66,268.30 : x
  2. Step 2: Convert to fraction form
    119,986.50/165,567.16 = 66,268.30/x
  3. Step 3: Cross multiply
    119,986.50x = 165,567.16 × 66,268.30
  4. Step 4: Simplify right side
    119,986.50x = 10,971,854,229.03
  5. Step 5: Solve for x
    x = 10,971,854,229.03/119,986.50
  6. Step 6: Final answer
    x = 91,442.41

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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.