Home / 123,353.58-170,228.08-66,764.82

Finding the Fourth Proportional to 123,353.58, 170,228.08 and 66,764.82

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Solution

The fourth proportional to 123,353.58, 170,228.08 and 66,764.82 is: 92,135.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,353.58 : 170,228.08 = 66,764.82 : x
  2. Step 2: Convert to fraction form
    123,353.58/170,228.08 = 66,764.82/x
  3. Step 3: Cross multiply
    123,353.58x = 170,228.08 × 66,764.82
  4. Step 4: Simplify right side
    123,353.58x = 11,365,247,120.15
  5. Step 5: Solve for x
    x = 11,365,247,120.15/123,353.58
  6. Step 6: Final answer
    x = 92,135.53

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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.