Home / 211,519.08-317,151.86-99,223.92

Finding the Fourth Proportional to 211,519.08, 317,151.86 and 99,223.92

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Solution

The fourth proportional to 211,519.08, 317,151.86 and 99,223.92 is: 148,776.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,519.08 : 317,151.86 = 99,223.92 : x
  2. Step 2: Convert to fraction form
    211,519.08/317,151.86 = 99,223.92/x
  3. Step 3: Cross multiply
    211,519.08x = 317,151.86 × 99,223.92
  4. Step 4: Simplify right side
    211,519.08x = 31,469,050,288.37
  5. Step 5: Solve for x
    x = 31,469,050,288.37/211,519.08
  6. Step 6: Final answer
    x = 148,776.41

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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.