Home / 186,779.21-280,279.97-68,458.86

Finding the Fourth Proportional to 186,779.21, 280,279.97 and 68,458.86

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Solution

The fourth proportional to 186,779.21, 280,279.97 and 68,458.86 is: 102,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,779.21 : 280,279.97 = 68,458.86 : x
  2. Step 2: Convert to fraction form
    186,779.21/280,279.97 = 68,458.86/x
  3. Step 3: Cross multiply
    186,779.21x = 280,279.97 × 68,458.86
  4. Step 4: Simplify right side
    186,779.21x = 19,187,646,884.74
  5. Step 5: Solve for x
    x = 19,187,646,884.74/186,779.21
  6. Step 6: Final answer
    x = 102,729.03

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1.5x scale

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.