Home / 186,988.32-280,519.20-68,660.64

Finding the Fourth Proportional to 186,988.32, 280,519.20 and 68,660.64

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Solution

The fourth proportional to 186,988.32, 280,519.20 and 68,660.64 is: 103,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,988.32 : 280,519.20 = 68,660.64 : x
  2. Step 2: Convert to fraction form
    186,988.32/280,519.20 = 68,660.64/x
  3. Step 3: Cross multiply
    186,988.32x = 280,519.20 × 68,660.64
  4. Step 4: Simplify right side
    186,988.32x = 19,260,627,804.29
  5. Step 5: Solve for x
    x = 19,260,627,804.29/186,988.32
  6. Step 6: Final answer
    x = 103,004.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.