Home / 120,533.76-166,331.76-66,084.78

Finding the Fourth Proportional to 120,533.76, 166,331.76 and 66,084.78

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Solution

The fourth proportional to 120,533.76, 166,331.76 and 66,084.78 is: 91,194.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,533.76 : 166,331.76 = 66,084.78 : x
  2. Step 2: Convert to fraction form
    120,533.76/166,331.76 = 66,084.78/x
  3. Step 3: Cross multiply
    120,533.76x = 166,331.76 × 66,084.78
  4. Step 4: Simplify right side
    120,533.76x = 10,991,997,766.61
  5. Step 5: Solve for x
    x = 10,991,997,766.61/120,533.76
  6. Step 6: Final answer
    x = 91,194.35

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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.