Home / 212,039.34-317,821.98-91,957.65

Finding the Fourth Proportional to 212,039.34, 317,821.98 and 91,957.65

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Solution

The fourth proportional to 212,039.34, 317,821.98 and 91,957.65 is: 137,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,039.34 : 317,821.98 = 91,957.65 : x
  2. Step 2: Convert to fraction form
    212,039.34/317,821.98 = 91,957.65/x
  3. Step 3: Cross multiply
    212,039.34x = 317,821.98 × 91,957.65
  4. Step 4: Simplify right side
    212,039.34x = 29,226,162,399.15
  5. Step 5: Solve for x
    x = 29,226,162,399.15/212,039.34
  6. Step 6: Final answer
    x = 137,833.68

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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.