Home / 120,920.22-166,875.54-67,206.12

Finding the Fourth Proportional to 120,920.22, 166,875.54 and 67,206.12

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Solution

The fourth proportional to 120,920.22, 166,875.54 and 67,206.12 is: 92,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,920.22 : 166,875.54 = 67,206.12 : x
  2. Step 2: Convert to fraction form
    120,920.22/166,875.54 = 67,206.12/x
  3. Step 3: Cross multiply
    120,920.22x = 166,875.54 × 67,206.12
  4. Step 4: Simplify right side
    120,920.22x = 11,215,057,566.30
  5. Step 5: Solve for x
    x = 11,215,057,566.30/120,920.22
  6. Step 6: Final answer
    x = 92,747.58

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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.