Home / 217,705.79-326,562.14-82,771.92

Finding the Fourth Proportional to 217,705.79, 326,562.14 and 82,771.92

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Solution

The fourth proportional to 217,705.79, 326,562.14 and 82,771.92 is: 124,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,705.79 : 326,562.14 = 82,771.92 : x
  2. Step 2: Convert to fraction form
    217,705.79/326,562.14 = 82,771.92/x
  3. Step 3: Cross multiply
    217,705.79x = 326,562.14 × 82,771.92
  4. Step 4: Simplify right side
    217,705.79x = 27,030,175,534.04
  5. Step 5: Solve for x
    x = 27,030,175,534.04/217,705.79
  6. Step 6: Final answer
    x = 124,159.19

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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.