Home / 213,389.51-320,170.33-94,979.87

Finding the Fourth Proportional to 213,389.51, 320,170.33 and 94,979.87

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Solution

The fourth proportional to 213,389.51, 320,170.33 and 94,979.87 is: 142,508.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,389.51 : 320,170.33 = 94,979.87 : x
  2. Step 2: Convert to fraction form
    213,389.51/320,170.33 = 94,979.87/x
  3. Step 3: Cross multiply
    213,389.51x = 320,170.33 × 94,979.87
  4. Step 4: Simplify right side
    213,389.51x = 30,409,734,720.41
  5. Step 5: Solve for x
    x = 30,409,734,720.41/213,389.51
  6. Step 6: Final answer
    x = 142,508.11

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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.