Home / 120,344.16-166,081.07-66,635.08

Finding the Fourth Proportional to 120,344.16, 166,081.07 and 66,635.08

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Solution

The fourth proportional to 120,344.16, 166,081.07 and 66,635.08 is: 91,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,344.16 : 166,081.07 = 66,635.08 : x
  2. Step 2: Convert to fraction form
    120,344.16/166,081.07 = 66,635.08/x
  3. Step 3: Cross multiply
    120,344.16x = 166,081.07 × 66,635.08
  4. Step 4: Simplify right side
    120,344.16x = 11,066,825,385.94
  5. Step 5: Solve for x
    x = 11,066,825,385.94/120,344.16
  6. Step 6: Final answer
    x = 91,959.80

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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.