Home / 186,909.06-280,367.55-66,973.83

Finding the Fourth Proportional to 186,909.06, 280,367.55 and 66,973.83

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Solution

The fourth proportional to 186,909.06, 280,367.55 and 66,973.83 is: 100,462.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,909.06 : 280,367.55 = 66,973.83 : x
  2. Step 2: Convert to fraction form
    186,909.06/280,367.55 = 66,973.83/x
  3. Step 3: Cross multiply
    186,909.06x = 280,367.55 × 66,973.83
  4. Step 4: Simplify right side
    186,909.06x = 18,777,288,631.22
  5. Step 5: Solve for x
    x = 18,777,288,631.22/186,909.06
  6. Step 6: Final answer
    x = 100,462.16

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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.