Home / 400,981.27-601,606.18-131,121.86

Finding the Fourth Proportional to 400,981.27, 601,606.18 and 131,121.86

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Solution

The fourth proportional to 400,981.27, 601,606.18 and 131,121.86 is: 196,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,981.27 : 601,606.18 = 131,121.86 : x
  2. Step 2: Convert to fraction form
    400,981.27/601,606.18 = 131,121.86/x
  3. Step 3: Cross multiply
    400,981.27x = 601,606.18 × 131,121.86
  4. Step 4: Simplify right side
    400,981.27x = 78,883,718,301.06
  5. Step 5: Solve for x
    x = 78,883,718,301.06/400,981.27
  6. Step 6: Final answer
    x = 196,726.69

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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.