Home / 209,471.80-289,077.24-113,984.65

Finding the Fourth Proportional to 209,471.80, 289,077.24 and 113,984.65

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Solution

The fourth proportional to 209,471.80, 289,077.24 and 113,984.65 is: 157,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,471.80 : 289,077.24 = 113,984.65 : x
  2. Step 2: Convert to fraction form
    209,471.80/289,077.24 = 113,984.65/x
  3. Step 3: Cross multiply
    209,471.80x = 289,077.24 × 113,984.65
  4. Step 4: Simplify right side
    209,471.80x = 32,950,366,009.06
  5. Step 5: Solve for x
    x = 32,950,366,009.06/209,471.80
  6. Step 6: Final answer
    x = 157,302.16

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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.