Home / 120,895.18-166,835.43-67,185.20

Finding the Fourth Proportional to 120,895.18, 166,835.43 and 67,185.20

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Solution

The fourth proportional to 120,895.18, 166,835.43 and 67,185.20 is: 92,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,895.18 : 166,835.43 = 67,185.20 : x
  2. Step 2: Convert to fraction form
    120,895.18/166,835.43 = 67,185.20/x
  3. Step 3: Cross multiply
    120,895.18x = 166,835.43 × 67,185.20
  4. Step 4: Simplify right side
    120,895.18x = 11,208,872,148.72
  5. Step 5: Solve for x
    x = 11,208,872,148.72/120,895.18
  6. Step 6: Final answer
    x = 92,715.63

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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.