Home / 186,761.22-280,141.21-111,903.85

Finding the Fourth Proportional to 186,761.22, 280,141.21 and 111,903.85

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Solution

The fourth proportional to 186,761.22, 280,141.21 and 111,903.85 is: 167,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,761.22 : 280,141.21 = 111,903.85 : x
  2. Step 2: Convert to fraction form
    186,761.22/280,141.21 = 111,903.85/x
  3. Step 3: Cross multiply
    186,761.22x = 280,141.21 × 111,903.85
  4. Step 4: Simplify right side
    186,761.22x = 31,348,879,942.66
  5. Step 5: Solve for x
    x = 31,348,879,942.66/186,761.22
  6. Step 6: Final answer
    x = 167,855.40

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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.