Home / 211,565.76-317,193.12-100,835.52

Finding the Fourth Proportional to 211,565.76, 317,193.12 and 100,835.52

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Solution

The fourth proportional to 211,565.76, 317,193.12 and 100,835.52 is: 151,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,565.76 : 317,193.12 = 100,835.52 : x
  2. Step 2: Convert to fraction form
    211,565.76/317,193.12 = 100,835.52/x
  3. Step 3: Cross multiply
    211,565.76x = 317,193.12 × 100,835.52
  4. Step 4: Simplify right side
    211,565.76x = 31,984,333,195.62
  5. Step 5: Solve for x
    x = 31,984,333,195.62/211,565.76
  6. Step 6: Final answer
    x = 151,179.16

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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.