Home / 120,680.04-166,538.73-66,965.20

Finding the Fourth Proportional to 120,680.04, 166,538.73 and 66,965.20

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Solution

The fourth proportional to 120,680.04, 166,538.73 and 66,965.20 is: 92,412.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,680.04 : 166,538.73 = 66,965.20 : x
  2. Step 2: Convert to fraction form
    120,680.04/166,538.73 = 66,965.20/x
  3. Step 3: Cross multiply
    120,680.04x = 166,538.73 × 66,965.20
  4. Step 4: Simplify right side
    120,680.04x = 11,152,299,196.97
  5. Step 5: Solve for x
    x = 11,152,299,196.97/120,680.04
  6. Step 6: Final answer
    x = 92,412.12

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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.