Home / 120,929.32-166,883.94-67,220.20

Finding the Fourth Proportional to 120,929.32, 166,883.94 and 67,220.20

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Solution

The fourth proportional to 120,929.32, 166,883.94 and 67,220.20 is: 92,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,929.32 : 166,883.94 = 67,220.20 : x
  2. Step 2: Convert to fraction form
    120,929.32/166,883.94 = 67,220.20/x
  3. Step 3: Cross multiply
    120,929.32x = 166,883.94 × 67,220.20
  4. Step 4: Simplify right side
    120,929.32x = 11,217,971,823.59
  5. Step 5: Solve for x
    x = 11,217,971,823.59/120,929.32
  6. Step 6: Final answer
    x = 92,764.70

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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.