Home / 120,854.25-166,783.56-82,693.80

Finding the Fourth Proportional to 120,854.25, 166,783.56 and 82,693.80

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Solution

The fourth proportional to 120,854.25, 166,783.56 and 82,693.80 is: 114,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,854.25 : 166,783.56 = 82,693.80 : x
  2. Step 2: Convert to fraction form
    120,854.25/166,783.56 = 82,693.80/x
  3. Step 3: Cross multiply
    120,854.25x = 166,783.56 × 82,693.80
  4. Step 4: Simplify right side
    120,854.25x = 13,791,966,353.93
  5. Step 5: Solve for x
    x = 13,791,966,353.93/120,854.25
  6. Step 6: Final answer
    x = 114,120.66

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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.