Home / 121,490.56-167,659.50-67,777.84

Finding the Fourth Proportional to 121,490.56, 167,659.50 and 67,777.84

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Solution

The fourth proportional to 121,490.56, 167,659.50 and 67,777.84 is: 93,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,490.56 : 167,659.50 = 67,777.84 : x
  2. Step 2: Convert to fraction form
    121,490.56/167,659.50 = 67,777.84/x
  3. Step 3: Cross multiply
    121,490.56x = 167,659.50 × 67,777.84
  4. Step 4: Simplify right side
    121,490.56x = 11,363,598,765.48
  5. Step 5: Solve for x
    x = 11,363,598,765.48/121,490.56
  6. Step 6: Final answer
    x = 93,534.83

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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.