Home / 120,921.13-166,857.90-69,926.16

Finding the Fourth Proportional to 120,921.13, 166,857.90 and 69,926.16

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Solution

The fourth proportional to 120,921.13, 166,857.90 and 69,926.16 is: 96,490.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,921.13 : 166,857.90 = 69,926.16 : x
  2. Step 2: Convert to fraction form
    120,921.13/166,857.90 = 69,926.16/x
  3. Step 3: Cross multiply
    120,921.13x = 166,857.90 × 69,926.16
  4. Step 4: Simplify right side
    120,921.13x = 11,667,732,212.66
  5. Step 5: Solve for x
    x = 11,667,732,212.66/120,921.13
  6. Step 6: Final answer
    x = 96,490.43

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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.