Home / 230,068.12-345,185.23-80,330.47

Finding the Fourth Proportional to 230,068.12, 345,185.23 and 80,330.47

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Solution

The fourth proportional to 230,068.12, 345,185.23 and 80,330.47 is: 120,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,068.12 : 345,185.23 = 80,330.47 : x
  2. Step 2: Convert to fraction form
    230,068.12/345,185.23 = 80,330.47/x
  3. Step 3: Cross multiply
    230,068.12x = 345,185.23 × 80,330.47
  4. Step 4: Simplify right side
    230,068.12x = 27,728,891,762.96
  5. Step 5: Solve for x
    x = 27,728,891,762.96/230,068.12
  6. Step 6: Final answer
    x = 120,524.70

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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.