Home / 197,171.06-272,101.50-120,688.65

Finding the Fourth Proportional to 197,171.06, 272,101.50 and 120,688.65

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Solution

The fourth proportional to 197,171.06, 272,101.50 and 120,688.65 is: 166,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,171.06 : 272,101.50 = 120,688.65 : x
  2. Step 2: Convert to fraction form
    197,171.06/272,101.50 = 120,688.65/x
  3. Step 3: Cross multiply
    197,171.06x = 272,101.50 × 120,688.65
  4. Step 4: Simplify right side
    197,171.06x = 32,839,562,697.98
  5. Step 5: Solve for x
    x = 32,839,562,697.98/197,171.06
  6. Step 6: Final answer
    x = 166,553.67

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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.