Home / 217,829.83-326,764.91-84,720.19

Finding the Fourth Proportional to 217,829.83, 326,764.91 and 84,720.19

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Solution

The fourth proportional to 217,829.83, 326,764.91 and 84,720.19 is: 127,088.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,829.83 : 326,764.91 = 84,720.19 : x
  2. Step 2: Convert to fraction form
    217,829.83/326,764.91 = 84,720.19/x
  3. Step 3: Cross multiply
    217,829.83x = 326,764.91 × 84,720.19
  4. Step 4: Simplify right side
    217,829.83x = 27,683,585,260.53
  5. Step 5: Solve for x
    x = 27,683,585,260.53/217,829.83
  6. Step 6: Final answer
    x = 127,088.13

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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.