Home / 186,428.25-257,304.33-109,942.65

Finding the Fourth Proportional to 186,428.25, 257,304.33 and 109,942.65

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Solution

The fourth proportional to 186,428.25, 257,304.33 and 109,942.65 is: 151,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,428.25 : 257,304.33 = 109,942.65 : x
  2. Step 2: Convert to fraction form
    186,428.25/257,304.33 = 109,942.65/x
  3. Step 3: Cross multiply
    186,428.25x = 257,304.33 × 109,942.65
  4. Step 4: Simplify right side
    186,428.25x = 28,288,719,896.67
  5. Step 5: Solve for x
    x = 28,288,719,896.67/186,428.25
  6. Step 6: Final answer
    x = 151,740.52

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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.