Home / 186,985.18-280,311.04-68,629.06

Finding the Fourth Proportional to 186,985.18, 280,311.04 and 68,629.06

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Solution

The fourth proportional to 186,985.18, 280,311.04 and 68,629.06 is: 102,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,985.18 : 280,311.04 = 68,629.06 : x
  2. Step 2: Convert to fraction form
    186,985.18/280,311.04 = 68,629.06/x
  3. Step 3: Cross multiply
    186,985.18x = 280,311.04 × 68,629.06
  4. Step 4: Simplify right side
    186,985.18x = 19,237,483,182.82
  5. Step 5: Solve for x
    x = 19,237,483,182.82/186,985.18
  6. Step 6: Final answer
    x = 102,882.40

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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.