Home / 185,939.40-278,790.84-85,965.96

Finding the Fourth Proportional to 185,939.40, 278,790.84 and 85,965.96

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Solution

The fourth proportional to 185,939.40, 278,790.84 and 85,965.96 is: 128,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,939.40 : 278,790.84 = 85,965.96 : x
  2. Step 2: Convert to fraction form
    185,939.40/278,790.84 = 85,965.96/x
  3. Step 3: Cross multiply
    185,939.40x = 278,790.84 × 85,965.96
  4. Step 4: Simplify right side
    185,939.40x = 23,966,522,199.81
  5. Step 5: Solve for x
    x = 23,966,522,199.81/185,939.40
  6. Step 6: Final answer
    x = 128,894.26

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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.