Home / 209,898.28-289,664.22-114,409.72

Finding the Fourth Proportional to 209,898.28, 289,664.22 and 114,409.72

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Solution

The fourth proportional to 209,898.28, 289,664.22 and 114,409.72 is: 157,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,898.28 : 289,664.22 = 114,409.72 : x
  2. Step 2: Convert to fraction form
    209,898.28/289,664.22 = 114,409.72/x
  3. Step 3: Cross multiply
    209,898.28x = 289,664.22 × 114,409.72
  4. Step 4: Simplify right side
    209,898.28x = 33,140,402,304.22
  5. Step 5: Solve for x
    x = 33,140,402,304.22/209,898.28
  6. Step 6: Final answer
    x = 157,887.92

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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.