Home / 121,004.20-166,984.90-67,294.12

Finding the Fourth Proportional to 121,004.20, 166,984.90 and 67,294.12

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Solution

The fourth proportional to 121,004.20, 166,984.90 and 67,294.12 is: 92,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,004.20 : 166,984.90 = 67,294.12 : x
  2. Step 2: Convert to fraction form
    121,004.20/166,984.90 = 67,294.12/x
  3. Step 3: Cross multiply
    121,004.20x = 166,984.90 × 67,294.12
  4. Step 4: Simplify right side
    121,004.20x = 11,237,101,898.79
  5. Step 5: Solve for x
    x = 11,237,101,898.79/121,004.20
  6. Step 6: Final answer
    x = 92,865.39

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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.