Home / 209,470.83-289,069.38-113,977.02

Finding the Fourth Proportional to 209,470.83, 289,069.38 and 113,977.02

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Solution

The fourth proportional to 209,470.83, 289,069.38 and 113,977.02 is: 157,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,470.83 : 289,069.38 = 113,977.02 : x
  2. Step 2: Convert to fraction form
    209,470.83/289,069.38 = 113,977.02/x
  3. Step 3: Cross multiply
    209,470.83x = 289,069.38 × 113,977.02
  4. Step 4: Simplify right side
    209,470.83x = 32,947,266,505.65
  5. Step 5: Solve for x
    x = 32,947,266,505.65/209,470.83
  6. Step 6: Final answer
    x = 157,288.09

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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.