Home / 120,453.96-166,220.87-66,005.81

Finding the Fourth Proportional to 120,453.96, 166,220.87 and 66,005.81

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Solution

The fourth proportional to 120,453.96, 166,220.87 and 66,005.81 is: 91,084.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,453.96 : 166,220.87 = 66,005.81 : x
  2. Step 2: Convert to fraction form
    120,453.96/166,220.87 = 66,005.81/x
  3. Step 3: Cross multiply
    120,453.96x = 166,220.87 × 66,005.81
  4. Step 4: Simplify right side
    120,453.96x = 10,971,542,002.12
  5. Step 5: Solve for x
    x = 10,971,542,002.12/120,453.96
  6. Step 6: Final answer
    x = 91,084.94

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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.