Home / 121,654.96-167,871.85-67,938.83

Finding the Fourth Proportional to 121,654.96, 167,871.85 and 67,938.83

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Solution

The fourth proportional to 121,654.96, 167,871.85 and 67,938.83 is: 93,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,654.96 : 167,871.85 = 67,938.83 : x
  2. Step 2: Convert to fraction form
    121,654.96/167,871.85 = 67,938.83/x
  3. Step 3: Cross multiply
    121,654.96x = 167,871.85 × 67,938.83
  4. Step 4: Simplify right side
    121,654.96x = 11,405,017,078.94
  5. Step 5: Solve for x
    x = 11,405,017,078.94/121,654.96
  6. Step 6: Final answer
    x = 93,748.89

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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.