Home / 186,836.10-280,084.05-68,478.90

Finding the Fourth Proportional to 186,836.10, 280,084.05 and 68,478.90

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Solution

The fourth proportional to 186,836.10, 280,084.05 and 68,478.90 is: 102,656.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,836.10 : 280,084.05 = 68,478.90 : x
  2. Step 2: Convert to fraction form
    186,836.10/280,084.05 = 68,478.90/x
  3. Step 3: Cross multiply
    186,836.10x = 280,084.05 × 68,478.90
  4. Step 4: Simplify right side
    186,836.10x = 19,179,847,651.55
  5. Step 5: Solve for x
    x = 19,179,847,651.55/186,836.10
  6. Step 6: Final answer
    x = 102,656.01

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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.