Home / 135,251.48-186,584.16-87,520.24

Finding the Fourth Proportional to 135,251.48, 186,584.16 and 87,520.24

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Solution

The fourth proportional to 135,251.48, 186,584.16 and 87,520.24 is: 120,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,251.48 : 186,584.16 = 87,520.24 : x
  2. Step 2: Convert to fraction form
    135,251.48/186,584.16 = 87,520.24/x
  3. Step 3: Cross multiply
    135,251.48x = 186,584.16 × 87,520.24
  4. Step 4: Simplify right side
    135,251.48x = 16,329,890,463.40
  5. Step 5: Solve for x
    x = 16,329,890,463.40/135,251.48
  6. Step 6: Final answer
    x = 120,737.24

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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.