Home / 209,839.08-289,581.24-114,345.72

Finding the Fourth Proportional to 209,839.08, 289,581.24 and 114,345.72

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Solution

The fourth proportional to 209,839.08, 289,581.24 and 114,345.72 is: 157,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,839.08 : 289,581.24 = 114,345.72 : x
  2. Step 2: Convert to fraction form
    209,839.08/289,581.24 = 114,345.72/x
  3. Step 3: Cross multiply
    209,839.08x = 289,581.24 × 114,345.72
  4. Step 4: Simplify right side
    209,839.08x = 33,112,375,386.29
  5. Step 5: Solve for x
    x = 33,112,375,386.29/209,839.08
  6. Step 6: Final answer
    x = 157,798.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.