Home / 120,483.90-166,268.76-66,769.80

Finding the Fourth Proportional to 120,483.90, 166,268.76 and 66,769.80

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Solution

The fourth proportional to 120,483.90, 166,268.76 and 66,769.80 is: 92,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,483.90 : 166,268.76 = 66,769.80 : x
  2. Step 2: Convert to fraction form
    120,483.90/166,268.76 = 66,769.80/x
  3. Step 3: Cross multiply
    120,483.90x = 166,268.76 × 66,769.80
  4. Step 4: Simplify right side
    120,483.90x = 11,101,731,851.45
  5. Step 5: Solve for x
    x = 11,101,731,851.45/120,483.90
  6. Step 6: Final answer
    x = 92,142.87

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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.