Home / 120,819.87-166,726.79-67,108.32

Finding the Fourth Proportional to 120,819.87, 166,726.79 and 67,108.32

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Solution

The fourth proportional to 120,819.87, 166,726.79 and 67,108.32 is: 92,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.87 : 166,726.79 = 67,108.32 : x
  2. Step 2: Convert to fraction form
    120,819.87/166,726.79 = 67,108.32/x
  3. Step 3: Cross multiply
    120,819.87x = 166,726.79 × 67,108.32
  4. Step 4: Simplify right side
    120,819.87x = 11,188,754,440.35
  5. Step 5: Solve for x
    x = 11,188,754,440.35/120,819.87
  6. Step 6: Final answer
    x = 92,606.91

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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.