Home / 131,520.70-197,183.85-72,423.10

Finding the Fourth Proportional to 131,520.70, 197,183.85 and 72,423.10

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Solution

The fourth proportional to 131,520.70, 197,183.85 and 72,423.10 is: 108,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,520.70 : 197,183.85 = 72,423.10 : x
  2. Step 2: Convert to fraction form
    131,520.70/197,183.85 = 72,423.10/x
  3. Step 3: Cross multiply
    131,520.70x = 197,183.85 × 72,423.10
  4. Step 4: Simplify right side
    131,520.70x = 14,280,665,686.94
  5. Step 5: Solve for x
    x = 14,280,665,686.94/131,520.70
  6. Step 6: Final answer
    x = 108,581.13

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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.