Home / 120,356.17-166,078.09-66,627.73

Finding the Fourth Proportional to 120,356.17, 166,078.09 and 66,627.73

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Solution

The fourth proportional to 120,356.17, 166,078.09 and 66,627.73 is: 91,938.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,356.17 : 166,078.09 = 66,627.73 : x
  2. Step 2: Convert to fraction form
    120,356.17/166,078.09 = 66,627.73/x
  3. Step 3: Cross multiply
    120,356.17x = 166,078.09 × 66,627.73
  4. Step 4: Simplify right side
    120,356.17x = 11,065,406,139.44
  5. Step 5: Solve for x
    x = 11,065,406,139.44/120,356.17
  6. Step 6: Final answer
    x = 91,938.84

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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.