Home / 211,740.16-317,741.92-131,934.80

Finding the Fourth Proportional to 211,740.16, 317,741.92 and 131,934.80

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Solution

The fourth proportional to 211,740.16, 317,741.92 and 131,934.80 is: 197,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,740.16 : 317,741.92 = 131,934.80 : x
  2. Step 2: Convert to fraction form
    211,740.16/317,741.92 = 131,934.80/x
  3. Step 3: Cross multiply
    211,740.16x = 317,741.92 × 131,934.80
  4. Step 4: Simplify right side
    211,740.16x = 41,921,216,666.82
  5. Step 5: Solve for x
    x = 41,921,216,666.82/211,740.16
  6. Step 6: Final answer
    x = 197,984.25

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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.