Home / 122,548.32-168,961.60-80,039.52

Finding the Fourth Proportional to 122,548.32, 168,961.60 and 80,039.52

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Solution

The fourth proportional to 122,548.32, 168,961.60 and 80,039.52 is: 110,353.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,548.32 : 168,961.60 = 80,039.52 : x
  2. Step 2: Convert to fraction form
    122,548.32/168,961.60 = 80,039.52/x
  3. Step 3: Cross multiply
    122,548.32x = 168,961.60 × 80,039.52
  4. Step 4: Simplify right side
    122,548.32x = 13,523,605,362.43
  5. Step 5: Solve for x
    x = 13,523,605,362.43/122,548.32
  6. Step 6: Final answer
    x = 110,353.25

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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.