Home / 120,480.56-166,242.96-80,254.32

Finding the Fourth Proportional to 120,480.56, 166,242.96 and 80,254.32

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Solution

The fourth proportional to 120,480.56, 166,242.96 and 80,254.32 is: 110,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,480.56 : 166,242.96 = 80,254.32 : x
  2. Step 2: Convert to fraction form
    120,480.56/166,242.96 = 80,254.32/x
  3. Step 3: Cross multiply
    120,480.56x = 166,242.96 × 80,254.32
  4. Step 4: Simplify right side
    120,480.56x = 13,341,715,709.59
  5. Step 5: Solve for x
    x = 13,341,715,709.59/120,480.56
  6. Step 6: Final answer
    x = 110,737.50

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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.