Home / 120,694.14-166,567.86-66,978.18

Finding the Fourth Proportional to 120,694.14, 166,567.86 and 66,978.18

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Solution

The fourth proportional to 120,694.14, 166,567.86 and 66,978.18 is: 92,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,694.14 : 166,567.86 = 66,978.18 : x
  2. Step 2: Convert to fraction form
    120,694.14/166,567.86 = 66,978.18/x
  3. Step 3: Cross multiply
    120,694.14x = 166,567.86 × 66,978.18
  4. Step 4: Simplify right side
    120,694.14x = 11,156,412,109.29
  5. Step 5: Solve for x
    x = 11,156,412,109.29/120,694.14
  6. Step 6: Final answer
    x = 92,435.41

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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.