Home / 186,774.73-280,161.18-86,879.86

Finding the Fourth Proportional to 186,774.73, 280,161.18 and 86,879.86

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Solution

The fourth proportional to 186,774.73, 280,161.18 and 86,879.86 is: 130,319.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,774.73 : 280,161.18 = 86,879.86 : x
  2. Step 2: Convert to fraction form
    186,774.73/280,161.18 = 86,879.86/x
  3. Step 3: Cross multiply
    186,774.73x = 280,161.18 × 86,879.86
  4. Step 4: Simplify right side
    186,774.73x = 24,340,363,395.43
  5. Step 5: Solve for x
    x = 24,340,363,395.43/186,774.73
  6. Step 6: Final answer
    x = 130,319.36

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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.