Home / 120,490.03-166,276.24-66,783.12

Finding the Fourth Proportional to 120,490.03, 166,276.24 and 66,783.12

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Solution

The fourth proportional to 120,490.03, 166,276.24 and 66,783.12 is: 92,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,490.03 : 166,276.24 = 66,783.12 : x
  2. Step 2: Convert to fraction form
    120,490.03/166,276.24 = 66,783.12/x
  3. Step 3: Cross multiply
    120,490.03x = 166,276.24 × 66,783.12
  4. Step 4: Simplify right side
    120,490.03x = 11,104,446,375.71
  5. Step 5: Solve for x
    x = 11,104,446,375.71/120,490.03
  6. Step 6: Final answer
    x = 92,160.71

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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.