Home / 186,989.32-280,520.70-68,661.64

Finding the Fourth Proportional to 186,989.32, 280,520.70 and 68,661.64

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Solution

The fourth proportional to 186,989.32, 280,520.70 and 68,661.64 is: 103,005.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,989.32 : 280,520.70 = 68,661.64 : x
  2. Step 2: Convert to fraction form
    186,989.32/280,520.70 = 68,661.64/x
  3. Step 3: Cross multiply
    186,989.32x = 280,520.70 × 68,661.64
  4. Step 4: Simplify right side
    186,989.32x = 19,261,011,315.95
  5. Step 5: Solve for x
    x = 19,261,011,315.95/186,989.32
  6. Step 6: Final answer
    x = 103,005.94

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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.