Home / 120,671.35-166,536-66,966.82

Finding the Fourth Proportional to 120,671.35, 166,536 and 66,966.82

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Solution

The fourth proportional to 120,671.35, 166,536 and 66,966.82 is: 92,419.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,671.35 : 166,536 = 66,966.82 : x
  2. Step 2: Convert to fraction form
    120,671.35/166,536 = 66,966.82/x
  3. Step 3: Cross multiply
    120,671.35x = 166,536 × 66,966.82
  4. Step 4: Simplify right side
    120,671.35x = 11,152,385,919.18
  5. Step 5: Solve for x
    x = 11,152,385,919.18/120,671.35
  6. Step 6: Final answer
    x = 92,419.50

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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.