Home / 131,477.10-197,069.85-72,355.20

Finding the Fourth Proportional to 131,477.10, 197,069.85 and 72,355.20

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Solution

The fourth proportional to 131,477.10, 197,069.85 and 72,355.20 is: 108,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,477.10 : 197,069.85 = 72,355.20 : x
  2. Step 2: Convert to fraction form
    131,477.10/197,069.85 = 72,355.20/x
  3. Step 3: Cross multiply
    131,477.10x = 197,069.85 × 72,355.20
  4. Step 4: Simplify right side
    131,477.10x = 14,259,028,410.72
  5. Step 5: Solve for x
    x = 14,259,028,410.72/131,477.10
  6. Step 6: Final answer
    x = 108,452.56

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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.