Home / 217,605.12-326,169.60-93,020.16

Finding the Fourth Proportional to 217,605.12, 326,169.60 and 93,020.16

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Solution

The fourth proportional to 217,605.12, 326,169.60 and 93,020.16 is: 139,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,605.12 : 326,169.60 = 93,020.16 : x
  2. Step 2: Convert to fraction form
    217,605.12/326,169.60 = 93,020.16/x
  3. Step 3: Cross multiply
    217,605.12x = 326,169.60 × 93,020.16
  4. Step 4: Simplify right side
    217,605.12x = 30,340,348,379.14
  5. Step 5: Solve for x
    x = 30,340,348,379.14/217,605.12
  6. Step 6: Final answer
    x = 139,428.47

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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.