Home / 211,981.92-318,005.16-131,955.14

Finding the Fourth Proportional to 211,981.92, 318,005.16 and 131,955.14

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Solution

The fourth proportional to 211,981.92, 318,005.16 and 131,955.14 is: 197,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,981.92 : 318,005.16 = 131,955.14 : x
  2. Step 2: Convert to fraction form
    211,981.92/318,005.16 = 131,955.14/x
  3. Step 3: Cross multiply
    211,981.92x = 318,005.16 × 131,955.14
  4. Step 4: Simplify right side
    211,981.92x = 41,962,413,818.50
  5. Step 5: Solve for x
    x = 41,962,413,818.50/211,981.92
  6. Step 6: Final answer
    x = 197,952.80

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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.