Home / 120,531.24-166,399.32-82,348.20

Finding the Fourth Proportional to 120,531.24, 166,399.32 and 82,348.20

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Solution

The fourth proportional to 120,531.24, 166,399.32 and 82,348.20 is: 113,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,531.24 : 166,399.32 = 82,348.20 : x
  2. Step 2: Convert to fraction form
    120,531.24/166,399.32 = 82,348.20/x
  3. Step 3: Cross multiply
    120,531.24x = 166,399.32 × 82,348.20
  4. Step 4: Simplify right side
    120,531.24x = 13,702,684,483.22
  5. Step 5: Solve for x
    x = 13,702,684,483.22/120,531.24
  6. Step 6: Final answer
    x = 113,685.75

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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.