Home / 120,812.28-166,722-67,098.24

Finding the Fourth Proportional to 120,812.28, 166,722 and 67,098.24

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Solution

The fourth proportional to 120,812.28, 166,722 and 67,098.24 is: 92,596.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,812.28 : 166,722 = 67,098.24 : x
  2. Step 2: Convert to fraction form
    120,812.28/166,722 = 67,098.24/x
  3. Step 3: Cross multiply
    120,812.28x = 166,722 × 67,098.24
  4. Step 4: Simplify right side
    120,812.28x = 11,186,752,769.28
  5. Step 5: Solve for x
    x = 11,186,752,769.28/120,812.28
  6. Step 6: Final answer
    x = 92,596.16

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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.