Home / 120,755.64-166,584.90-84,965.40

Finding the Fourth Proportional to 120,755.64, 166,584.90 and 84,965.40

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Solution

The fourth proportional to 120,755.64, 166,584.90 and 84,965.40 is: 117,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,755.64 : 166,584.90 = 84,965.40 : x
  2. Step 2: Convert to fraction form
    120,755.64/166,584.90 = 84,965.40/x
  3. Step 3: Cross multiply
    120,755.64x = 166,584.90 × 84,965.40
  4. Step 4: Simplify right side
    120,755.64x = 14,153,952,662.46
  5. Step 5: Solve for x
    x = 14,153,952,662.46/120,755.64
  6. Step 6: Final answer
    x = 117,211.52

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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.