Home / 209,147.38-313,720.28-59,387.68

Finding the Fourth Proportional to 209,147.38, 313,720.28 and 59,387.68

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Solution

The fourth proportional to 209,147.38, 313,720.28 and 59,387.68 is: 89,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,147.38 : 313,720.28 = 59,387.68 : x
  2. Step 2: Convert to fraction form
    209,147.38/313,720.28 = 59,387.68/x
  3. Step 3: Cross multiply
    209,147.38x = 313,720.28 × 59,387.68
  4. Step 4: Simplify right side
    209,147.38x = 18,631,119,598.15
  5. Step 5: Solve for x
    x = 18,631,119,598.15/209,147.38
  6. Step 6: Final answer
    x = 89,081.30

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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.