Home / 131,503.70-197,158.35-72,406.10

Finding the Fourth Proportional to 131,503.70, 197,158.35 and 72,406.10

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Solution

The fourth proportional to 131,503.70, 197,158.35 and 72,406.10 is: 108,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,503.70 : 197,158.35 = 72,406.10 : x
  2. Step 2: Convert to fraction form
    131,503.70/197,158.35 = 72,406.10/x
  3. Step 3: Cross multiply
    131,503.70x = 197,158.35 × 72,406.10
  4. Step 4: Simplify right side
    131,503.70x = 14,275,467,205.94
  5. Step 5: Solve for x
    x = 14,275,467,205.94/131,503.70
  6. Step 6: Final answer
    x = 108,555.63

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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.