Home / 126,022.08-189,059.04-86,597.76

Finding the Fourth Proportional to 126,022.08, 189,059.04 and 86,597.76

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Solution

The fourth proportional to 126,022.08, 189,059.04 and 86,597.76 is: 129,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,022.08 : 189,059.04 = 86,597.76 : x
  2. Step 2: Convert to fraction form
    126,022.08/189,059.04 = 86,597.76/x
  3. Step 3: Cross multiply
    126,022.08x = 189,059.04 × 86,597.76
  4. Step 4: Simplify right side
    126,022.08x = 16,372,089,371.75
  5. Step 5: Solve for x
    x = 16,372,089,371.75/126,022.08
  6. Step 6: Final answer
    x = 129,914.45

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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.