Home / 120,867.21-166,623.54-84,945.74

Finding the Fourth Proportional to 120,867.21, 166,623.54 and 84,945.74

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Solution

The fourth proportional to 120,867.21, 166,623.54 and 84,945.74 is: 117,103.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,867.21 : 166,623.54 = 84,945.74 : x
  2. Step 2: Convert to fraction form
    120,867.21/166,623.54 = 84,945.74/x
  3. Step 3: Cross multiply
    120,867.21x = 166,623.54 × 84,945.74
  4. Step 4: Simplify right side
    120,867.21x = 14,153,959,820.96
  5. Step 5: Solve for x
    x = 14,153,959,820.96/120,867.21
  6. Step 6: Final answer
    x = 117,103.39

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1.5x scale

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.