Home / 186,221.83-257,013.79-109,716.47

Finding the Fourth Proportional to 186,221.83, 257,013.79 and 109,716.47

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Solution

The fourth proportional to 186,221.83, 257,013.79 and 109,716.47 is: 151,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,221.83 : 257,013.79 = 109,716.47 : x
  2. Step 2: Convert to fraction form
    186,221.83/257,013.79 = 109,716.47/x
  3. Step 3: Cross multiply
    186,221.83x = 257,013.79 × 109,716.47
  4. Step 4: Simplify right side
    186,221.83x = 28,198,645,780.12
  5. Step 5: Solve for x
    x = 28,198,645,780.12/186,221.83
  6. Step 6: Final answer
    x = 151,425.03

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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.