Home / 120,637.72-166,479.86-66,930.92

Finding the Fourth Proportional to 120,637.72, 166,479.86 and 66,930.92

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Solution

The fourth proportional to 120,637.72, 166,479.86 and 66,930.92 is: 92,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,637.72 : 166,479.86 = 66,930.92 : x
  2. Step 2: Convert to fraction form
    120,637.72/166,479.86 = 66,930.92/x
  3. Step 3: Cross multiply
    120,637.72x = 166,479.86 × 66,930.92
  4. Step 4: Simplify right side
    120,637.72x = 11,142,650,191.27
  5. Step 5: Solve for x
    x = 11,142,650,191.27/120,637.72
  6. Step 6: Final answer
    x = 92,364.56

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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.