Home / 131,522.20-197,186.10-72,424.60

Finding the Fourth Proportional to 131,522.20, 197,186.10 and 72,424.60

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Solution

The fourth proportional to 131,522.20, 197,186.10 and 72,424.60 is: 108,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,522.20 : 197,186.10 = 72,424.60 : x
  2. Step 2: Convert to fraction form
    131,522.20/197,186.10 = 72,424.60/x
  3. Step 3: Cross multiply
    131,522.20x = 197,186.10 × 72,424.60
  4. Step 4: Simplify right side
    131,522.20x = 14,281,124,418.06
  5. Step 5: Solve for x
    x = 14,281,124,418.06/131,522.20
  6. Step 6: Final answer
    x = 108,583.38

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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.