Home / 126,485.28-189,902.88-64,199.52

Finding the Fourth Proportional to 126,485.28, 189,902.88 and 64,199.52

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Solution

The fourth proportional to 126,485.28, 189,902.88 and 64,199.52 is: 96,388.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,485.28 : 189,902.88 = 64,199.52 : x
  2. Step 2: Convert to fraction form
    126,485.28/189,902.88 = 64,199.52/x
  3. Step 3: Cross multiply
    126,485.28x = 189,902.88 × 64,199.52
  4. Step 4: Simplify right side
    126,485.28x = 12,191,673,742.62
  5. Step 5: Solve for x
    x = 12,191,673,742.62/126,485.28
  6. Step 6: Final answer
    x = 96,388.08

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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.