Home / 120,582.15-166,403.82-66,872.13

Finding the Fourth Proportional to 120,582.15, 166,403.82 and 66,872.13

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Solution

The fourth proportional to 120,582.15, 166,403.82 and 66,872.13 is: 92,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,582.15 : 166,403.82 = 66,872.13 : x
  2. Step 2: Convert to fraction form
    120,582.15/166,403.82 = 66,872.13/x
  3. Step 3: Cross multiply
    120,582.15x = 166,403.82 × 66,872.13
  4. Step 4: Simplify right side
    120,582.15x = 11,127,777,883.54
  5. Step 5: Solve for x
    x = 11,127,777,883.54/120,582.15
  6. Step 6: Final answer
    x = 92,283.79

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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.