Home / 120,781.49-166,693.84-73,035.18

Finding the Fourth Proportional to 120,781.49, 166,693.84 and 73,035.18

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Solution

The fourth proportional to 120,781.49, 166,693.84 and 73,035.18 is: 100,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,781.49 : 166,693.84 = 73,035.18 : x
  2. Step 2: Convert to fraction form
    120,781.49/166,693.84 = 73,035.18/x
  3. Step 3: Cross multiply
    120,781.49x = 166,693.84 × 73,035.18
  4. Step 4: Simplify right side
    120,781.49x = 12,174,514,609.29
  5. Step 5: Solve for x
    x = 12,174,514,609.29/120,781.49
  6. Step 6: Final answer
    x = 100,797.85

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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.