Home / 230,069.12-345,186.73-80,331.47

Finding the Fourth Proportional to 230,069.12, 345,186.73 and 80,331.47

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Solution

The fourth proportional to 230,069.12, 345,186.73 and 80,331.47 is: 120,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,069.12 : 345,186.73 = 80,331.47 : x
  2. Step 2: Convert to fraction form
    230,069.12/345,186.73 = 80,331.47/x
  3. Step 3: Cross multiply
    230,069.12x = 345,186.73 × 80,331.47
  4. Step 4: Simplify right side
    230,069.12x = 27,729,357,445.39
  5. Step 5: Solve for x
    x = 27,729,357,445.39/230,069.12
  6. Step 6: Final answer
    x = 120,526.20

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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.