Home / 120,558.29-166,363.17-66,840.08

Finding the Fourth Proportional to 120,558.29, 166,363.17 and 66,840.08

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Solution

The fourth proportional to 120,558.29, 166,363.17 and 66,840.08 is: 92,235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,558.29 : 166,363.17 = 66,840.08 : x
  2. Step 2: Convert to fraction form
    120,558.29/166,363.17 = 66,840.08/x
  3. Step 3: Cross multiply
    120,558.29x = 166,363.17 × 66,840.08
  4. Step 4: Simplify right side
    120,558.29x = 11,119,727,591.85
  5. Step 5: Solve for x
    x = 11,119,727,591.85/120,558.29
  6. Step 6: Final answer
    x = 92,235.28

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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.