Home / 229,911.04-317,286.20-139,215.74

Finding the Fourth Proportional to 229,911.04, 317,286.20 and 139,215.74

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Solution

The fourth proportional to 229,911.04, 317,286.20 and 139,215.74 is: 192,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,911.04 : 317,286.20 = 139,215.74 : x
  2. Step 2: Convert to fraction form
    229,911.04/317,286.20 = 139,215.74/x
  3. Step 3: Cross multiply
    229,911.04x = 317,286.20 × 139,215.74
  4. Step 4: Simplify right side
    229,911.04x = 44,171,233,124.79
  5. Step 5: Solve for x
    x = 44,171,233,124.79/229,911.04
  6. Step 6: Final answer
    x = 192,123.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.