Home / 131,578.20-197,237.70-65,028.60

Finding the Fourth Proportional to 131,578.20, 197,237.70 and 65,028.60

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Solution

The fourth proportional to 131,578.20, 197,237.70 and 65,028.60 is: 97,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578.20 : 197,237.70 = 65,028.60 : x
  2. Step 2: Convert to fraction form
    131,578.20/197,237.70 = 65,028.60/x
  3. Step 3: Cross multiply
    131,578.20x = 197,237.70 × 65,028.60
  4. Step 4: Simplify right side
    131,578.20x = 12,826,091,498.22
  5. Step 5: Solve for x
    x = 12,826,091,498.22/131,578.20
  6. Step 6: Final answer
    x = 97,478.85

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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.