Home / 120,769.40-181,185.42-45,890.84

Finding the Fourth Proportional to 120,769.40, 181,185.42 and 45,890.84

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Solution

The fourth proportional to 120,769.40, 181,185.42 and 45,890.84 is: 68,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,769.40 : 181,185.42 = 45,890.84 : x
  2. Step 2: Convert to fraction form
    120,769.40/181,185.42 = 45,890.84/x
  3. Step 3: Cross multiply
    120,769.40x = 181,185.42 × 45,890.84
  4. Step 4: Simplify right side
    120,769.40x = 8,314,751,119.55
  5. Step 5: Solve for x
    x = 8,314,751,119.55/120,769.40
  6. Step 6: Final answer
    x = 68,848.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.