Home / 120,447.16-166,207.74-66,727.96

Finding the Fourth Proportional to 120,447.16, 166,207.74 and 66,727.96

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Solution

The fourth proportional to 120,447.16, 166,207.74 and 66,727.96 is: 92,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,447.16 : 166,207.74 = 66,727.96 : x
  2. Step 2: Convert to fraction form
    120,447.16/166,207.74 = 66,727.96/x
  3. Step 3: Cross multiply
    120,447.16x = 166,207.74 × 66,727.96
  4. Step 4: Simplify right side
    120,447.16x = 11,090,703,426.41
  5. Step 5: Solve for x
    x = 11,090,703,426.41/120,447.16
  6. Step 6: Final answer
    x = 92,079.41

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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.