Home / 211,786.93-317,587.11-99,499.06

Finding the Fourth Proportional to 211,786.93, 317,587.11 and 99,499.06

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Solution

The fourth proportional to 211,786.93, 317,587.11 and 99,499.06 is: 149,204.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,786.93 : 317,587.11 = 99,499.06 : x
  2. Step 2: Convert to fraction form
    211,786.93/317,587.11 = 99,499.06/x
  3. Step 3: Cross multiply
    211,786.93x = 317,587.11 × 99,499.06
  4. Step 4: Simplify right side
    211,786.93x = 31,599,618,913.12
  5. Step 5: Solve for x
    x = 31,599,618,913.12/211,786.93
  6. Step 6: Final answer
    x = 149,204.76

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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.