Home / 211,766.49-317,697.12-71,521.47

Finding the Fourth Proportional to 211,766.49, 317,697.12 and 71,521.47

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Solution

The fourth proportional to 211,766.49, 317,697.12 and 71,521.47 is: 107,298.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,766.49 : 317,697.12 = 71,521.47 : x
  2. Step 2: Convert to fraction form
    211,766.49/317,697.12 = 71,521.47/x
  3. Step 3: Cross multiply
    211,766.49x = 317,697.12 × 71,521.47
  4. Step 4: Simplify right side
    211,766.49x = 22,722,165,037.17
  5. Step 5: Solve for x
    x = 22,722,165,037.17/211,766.49
  6. Step 6: Final answer
    x = 107,298.21

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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.