Home / 186,943.12-280,405.36-68,605.15

Finding the Fourth Proportional to 186,943.12, 280,405.36 and 68,605.15

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Solution

The fourth proportional to 186,943.12, 280,405.36 and 68,605.15 is: 102,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,943.12 : 280,405.36 = 68,605.15 : x
  2. Step 2: Convert to fraction form
    186,943.12/280,405.36 = 68,605.15/x
  3. Step 3: Cross multiply
    186,943.12x = 280,405.36 × 68,605.15
  4. Step 4: Simplify right side
    186,943.12x = 19,237,251,783.60
  5. Step 5: Solve for x
    x = 19,237,251,783.60/186,943.12
  6. Step 6: Final answer
    x = 102,904.30

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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.