Home / 120,581.40-166,399.16-66,866.24

Finding the Fourth Proportional to 120,581.40, 166,399.16 and 66,866.24

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Solution

The fourth proportional to 120,581.40, 166,399.16 and 66,866.24 is: 92,273.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,581.40 : 166,399.16 = 66,866.24 : x
  2. Step 2: Convert to fraction form
    120,581.40/166,399.16 = 66,866.24/x
  3. Step 3: Cross multiply
    120,581.40x = 166,399.16 × 66,866.24
  4. Step 4: Simplify right side
    120,581.40x = 11,126,486,168.36
  5. Step 5: Solve for x
    x = 11,126,486,168.36/120,581.40
  6. Step 6: Final answer
    x = 92,273.65

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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.