Home / 136,800.03-188,787.21-85,814.91

Finding the Fourth Proportional to 136,800.03, 188,787.21 and 85,814.91

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Solution

The fourth proportional to 136,800.03, 188,787.21 and 85,814.91 is: 118,426.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,800.03 : 188,787.21 = 85,814.91 : x
  2. Step 2: Convert to fraction form
    136,800.03/188,787.21 = 85,814.91/x
  3. Step 3: Cross multiply
    136,800.03x = 188,787.21 × 85,814.91
  4. Step 4: Simplify right side
    136,800.03x = 16,200,757,435.30
  5. Step 5: Solve for x
    x = 16,200,757,435.30/136,800.03
  6. Step 6: Final answer
    x = 118,426.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.