Home / 120,883.37-166,809.27-69,899.40

Finding the Fourth Proportional to 120,883.37, 166,809.27 and 69,899.40

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Solution

The fourth proportional to 120,883.37, 166,809.27 and 69,899.40 is: 96,455.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,883.37 : 166,809.27 = 69,899.40 : x
  2. Step 2: Convert to fraction form
    120,883.37/166,809.27 = 69,899.40/x
  3. Step 3: Cross multiply
    120,883.37x = 166,809.27 × 69,899.40
  4. Step 4: Simplify right side
    120,883.37x = 11,659,867,887.44
  5. Step 5: Solve for x
    x = 11,659,867,887.44/120,883.37
  6. Step 6: Final answer
    x = 96,455.52

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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.