Home / 230,077.18-345,131.54-78,212.46

Finding the Fourth Proportional to 230,077.18, 345,131.54 and 78,212.46

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Solution

The fourth proportional to 230,077.18, 345,131.54 and 78,212.46 is: 117,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,077.18 : 345,131.54 = 78,212.46 : x
  2. Step 2: Convert to fraction form
    230,077.18/345,131.54 = 78,212.46/x
  3. Step 3: Cross multiply
    230,077.18x = 345,131.54 × 78,212.46
  4. Step 4: Simplify right side
    230,077.18x = 26,993,587,775.79
  5. Step 5: Solve for x
    x = 26,993,587,775.79/230,077.18
  6. Step 6: Final answer
    x = 117,324.05

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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.