Home / 342,139.36-513,230.04-131,777.92

Finding the Fourth Proportional to 342,139.36, 513,230.04 and 131,777.92

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Solution

The fourth proportional to 342,139.36, 513,230.04 and 131,777.92 is: 197,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,139.36 : 513,230.04 = 131,777.92 : x
  2. Step 2: Convert to fraction form
    342,139.36/513,230.04 = 131,777.92/x
  3. Step 3: Cross multiply
    342,139.36x = 513,230.04 × 131,777.92
  4. Step 4: Simplify right side
    342,139.36x = 67,632,387,152.72
  5. Step 5: Solve for x
    x = 67,632,387,152.72/342,139.36
  6. Step 6: Final answer
    x = 197,674.97

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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.