Home / 186,834.81-280,250.37-85,604.16

Finding the Fourth Proportional to 186,834.81, 280,250.37 and 85,604.16

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Solution

The fourth proportional to 186,834.81, 280,250.37 and 85,604.16 is: 128,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,834.81 : 280,250.37 = 85,604.16 : x
  2. Step 2: Convert to fraction form
    186,834.81/280,250.37 = 85,604.16/x
  3. Step 3: Cross multiply
    186,834.81x = 280,250.37 × 85,604.16
  4. Step 4: Simplify right side
    186,834.81x = 23,990,597,513.54
  5. Step 5: Solve for x
    x = 23,990,597,513.54/186,834.81
  6. Step 6: Final answer
    x = 128,405.39

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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.