Home / 120,398.24-166,149.59-65,950.64

Finding the Fourth Proportional to 120,398.24, 166,149.59 and 65,950.64

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Solution

The fourth proportional to 120,398.24, 166,149.59 and 65,950.64 is: 91,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,398.24 : 166,149.59 = 65,950.64 : x
  2. Step 2: Convert to fraction form
    120,398.24/166,149.59 = 65,950.64/x
  3. Step 3: Cross multiply
    120,398.24x = 166,149.59 × 65,950.64
  4. Step 4: Simplify right side
    120,398.24x = 10,957,671,796.24
  5. Step 5: Solve for x
    x = 10,957,671,796.24/120,398.24
  6. Step 6: Final answer
    x = 91,011.89

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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.