Home / 120,266.72-165,965.59-66,551.70

Finding the Fourth Proportional to 120,266.72, 165,965.59 and 66,551.70

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Solution

The fourth proportional to 120,266.72, 165,965.59 and 66,551.70 is: 91,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,266.72 : 165,965.59 = 66,551.70 : x
  2. Step 2: Convert to fraction form
    120,266.72/165,965.59 = 66,551.70/x
  3. Step 3: Cross multiply
    120,266.72x = 165,965.59 × 66,551.70
  4. Step 4: Simplify right side
    120,266.72x = 11,045,292,156.00
  5. Step 5: Solve for x
    x = 11,045,292,156.00/120,266.72
  6. Step 6: Final answer
    x = 91,839.97

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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.