Home / 120,667.39-166,518.45-66,951.25

Finding the Fourth Proportional to 120,667.39, 166,518.45 and 66,951.25

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Solution

The fourth proportional to 120,667.39, 166,518.45 and 66,951.25 is: 92,391.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,667.39 : 166,518.45 = 66,951.25 : x
  2. Step 2: Convert to fraction form
    120,667.39/166,518.45 = 66,951.25/x
  3. Step 3: Cross multiply
    120,667.39x = 166,518.45 × 66,951.25
  4. Step 4: Simplify right side
    120,667.39x = 11,148,617,959.27
  5. Step 5: Solve for x
    x = 11,148,617,959.27/120,667.39
  6. Step 6: Final answer
    x = 92,391.31

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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.