Home / 209,880.43-314,722.20-76,667.52

Finding the Fourth Proportional to 209,880.43, 314,722.20 and 76,667.52

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Solution

The fourth proportional to 209,880.43, 314,722.20 and 76,667.52 is: 114,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,880.43 : 314,722.20 = 76,667.52 : x
  2. Step 2: Convert to fraction form
    209,880.43/314,722.20 = 76,667.52/x
  3. Step 3: Cross multiply
    209,880.43x = 314,722.20 × 76,667.52
  4. Step 4: Simplify right side
    209,880.43x = 24,128,970,562.94
  5. Step 5: Solve for x
    x = 24,128,970,562.94/209,880.43
  6. Step 6: Final answer
    x = 114,965.32

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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.