Home / 186,731.28-280,132.44-68,409.12

Finding the Fourth Proportional to 186,731.28, 280,132.44 and 68,409.12

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Solution

The fourth proportional to 186,731.28, 280,132.44 and 68,409.12 is: 102,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,731.28 : 280,132.44 = 68,409.12 : x
  2. Step 2: Convert to fraction form
    186,731.28/280,132.44 = 68,409.12/x
  3. Step 3: Cross multiply
    186,731.28x = 280,132.44 × 68,409.12
  4. Step 4: Simplify right side
    186,731.28x = 19,163,613,703.85
  5. Step 5: Solve for x
    x = 19,163,613,703.85/186,731.28
  6. Step 6: Final answer
    x = 102,626.69

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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.