Home / 131,415.40-197,171.70-52,586.20

Finding the Fourth Proportional to 131,415.40, 197,171.70 and 52,586.20

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Solution

The fourth proportional to 131,415.40, 197,171.70 and 52,586.20 is: 78,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,415.40 : 197,171.70 = 52,586.20 : x
  2. Step 2: Convert to fraction form
    131,415.40/197,171.70 = 52,586.20/x
  3. Step 3: Cross multiply
    131,415.40x = 197,171.70 × 52,586.20
  4. Step 4: Simplify right side
    131,415.40x = 10,368,510,450.54
  5. Step 5: Solve for x
    x = 10,368,510,450.54/131,415.40
  6. Step 6: Final answer
    x = 78,898.75

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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.