Home / 197,355.92-272,401.80-121,861.04

Finding the Fourth Proportional to 197,355.92, 272,401.80 and 121,861.04

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Solution

The fourth proportional to 197,355.92, 272,401.80 and 121,861.04 is: 168,199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,355.92 : 272,401.80 = 121,861.04 : x
  2. Step 2: Convert to fraction form
    197,355.92/272,401.80 = 121,861.04/x
  3. Step 3: Cross multiply
    197,355.92x = 272,401.80 × 121,861.04
  4. Step 4: Simplify right side
    197,355.92x = 33,195,166,645.87
  5. Step 5: Solve for x
    x = 33,195,166,645.87/197,355.92
  6. Step 6: Final answer
    x = 168,199.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.