Home / 186,209.12-256,923.78-109,731.34

Finding the Fourth Proportional to 186,209.12, 256,923.78 and 109,731.34

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Solution

The fourth proportional to 186,209.12, 256,923.78 and 109,731.34 is: 151,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,209.12 : 256,923.78 = 109,731.34 : x
  2. Step 2: Convert to fraction form
    186,209.12/256,923.78 = 109,731.34/x
  3. Step 3: Cross multiply
    186,209.12x = 256,923.78 × 109,731.34
  4. Step 4: Simplify right side
    186,209.12x = 28,192,590,657.27
  5. Step 5: Solve for x
    x = 28,192,590,657.27/186,209.12
  6. Step 6: Final answer
    x = 151,402.85

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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.