Home / 120,358.33-166,100.21-72,610.66

Finding the Fourth Proportional to 120,358.33, 166,100.21 and 72,610.66

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Solution

The fourth proportional to 120,358.33, 166,100.21 and 72,610.66 is: 100,206.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,358.33 : 166,100.21 = 72,610.66 : x
  2. Step 2: Convert to fraction form
    120,358.33/166,100.21 = 72,610.66/x
  3. Step 3: Cross multiply
    120,358.33x = 166,100.21 × 72,610.66
  4. Step 4: Simplify right side
    120,358.33x = 12,060,645,874.24
  5. Step 5: Solve for x
    x = 12,060,645,874.24/120,358.33
  6. Step 6: Final answer
    x = 100,206.16

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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.