Home / 209,320.60-313,923.30-84,674.20

Finding the Fourth Proportional to 209,320.60, 313,923.30 and 84,674.20

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Solution

The fourth proportional to 209,320.60, 313,923.30 and 84,674.20 is: 126,988.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.60 : 313,923.30 = 84,674.20 : x
  2. Step 2: Convert to fraction form
    209,320.60/313,923.30 = 84,674.20/x
  3. Step 3: Cross multiply
    209,320.60x = 313,923.30 × 84,674.20
  4. Step 4: Simplify right side
    209,320.60x = 26,581,204,288.86
  5. Step 5: Solve for x
    x = 26,581,204,288.86/209,320.60
  6. Step 6: Final answer
    x = 126,988.00

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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.