Home / 186,962.87-280,503.30-142,198.65

Finding the Fourth Proportional to 186,962.87, 280,503.30 and 142,198.65

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Solution

The fourth proportional to 186,962.87, 280,503.30 and 142,198.65 is: 213,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,962.87 : 280,503.30 = 142,198.65 : x
  2. Step 2: Convert to fraction form
    186,962.87/280,503.30 = 142,198.65/x
  3. Step 3: Cross multiply
    186,962.87x = 280,503.30 × 142,198.65
  4. Step 4: Simplify right side
    186,962.87x = 39,887,190,580.55
  5. Step 5: Solve for x
    x = 39,887,190,580.55/186,962.87
  6. Step 6: Final answer
    x = 213,342.85

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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.