Home / 123,363.12-170,241.20-66,774.32

Finding the Fourth Proportional to 123,363.12, 170,241.20 and 66,774.32

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Solution

The fourth proportional to 123,363.12, 170,241.20 and 66,774.32 is: 92,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,363.12 : 170,241.20 = 66,774.32 : x
  2. Step 2: Convert to fraction form
    123,363.12/170,241.20 = 66,774.32/x
  3. Step 3: Cross multiply
    123,363.12x = 170,241.20 × 66,774.32
  4. Step 4: Simplify right side
    123,363.12x = 11,367,740,365.98
  5. Step 5: Solve for x
    x = 11,367,740,365.98/123,363.12
  6. Step 6: Final answer
    x = 92,148.61

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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.