Home / 120,653.93-166,505.15-66,936.96

Finding the Fourth Proportional to 120,653.93, 166,505.15 and 66,936.96

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Solution

The fourth proportional to 120,653.93, 166,505.15 and 66,936.96 is: 92,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,653.93 : 166,505.15 = 66,936.96 : x
  2. Step 2: Convert to fraction form
    120,653.93/166,505.15 = 66,936.96/x
  3. Step 3: Cross multiply
    120,653.93x = 166,505.15 × 66,936.96
  4. Step 4: Simplify right side
    120,653.93x = 11,145,348,565.34
  5. Step 5: Solve for x
    x = 11,145,348,565.34/120,653.93
  6. Step 6: Final answer
    x = 92,374.52

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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.