Home / 209,821.60-289,550.04-114,328.96

Finding the Fourth Proportional to 209,821.60, 289,550.04 and 114,328.96

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Solution

The fourth proportional to 209,821.60, 289,550.04 and 114,328.96 is: 157,771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,821.60 : 289,550.04 = 114,328.96 : x
  2. Step 2: Convert to fraction form
    209,821.60/289,550.04 = 114,328.96/x
  3. Step 3: Cross multiply
    209,821.60x = 289,550.04 × 114,328.96
  4. Step 4: Simplify right side
    209,821.60x = 33,103,954,941.16
  5. Step 5: Solve for x
    x = 33,103,954,941.16/209,821.60
  6. Step 6: Final answer
    x = 157,771.91

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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.