Home / 209,901.28-289,668.36-114,412.72

Finding the Fourth Proportional to 209,901.28, 289,668.36 and 114,412.72

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Solution

The fourth proportional to 209,901.28, 289,668.36 and 114,412.72 is: 157,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,901.28 : 289,668.36 = 114,412.72 : x
  2. Step 2: Convert to fraction form
    209,901.28/289,668.36 = 114,412.72/x
  3. Step 3: Cross multiply
    209,901.28x = 289,668.36 × 114,412.72
  4. Step 4: Simplify right side
    209,901.28x = 33,141,744,965.54
  5. Step 5: Solve for x
    x = 33,141,744,965.54/209,901.28
  6. Step 6: Final answer
    x = 157,892.06

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1.5x scale

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.