Home / 120,471.03-166,256.28-66,762.09

Finding the Fourth Proportional to 120,471.03, 166,256.28 and 66,762.09

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Solution

The fourth proportional to 120,471.03, 166,256.28 and 66,762.09 is: 92,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,471.03 : 166,256.28 = 66,762.09 : x
  2. Step 2: Convert to fraction form
    120,471.03/166,256.28 = 66,762.09/x
  3. Step 3: Cross multiply
    120,471.03x = 166,256.28 × 66,762.09
  4. Step 4: Simplify right side
    120,471.03x = 11,099,616,728.43
  5. Step 5: Solve for x
    x = 11,099,616,728.43/120,471.03
  6. Step 6: Final answer
    x = 92,135.15

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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.