Home / 109,645.08-151,313.14-66,609.92

Finding the Fourth Proportional to 109,645.08, 151,313.14 and 66,609.92

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Solution

The fourth proportional to 109,645.08, 151,313.14 and 66,609.92 is: 91,923.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,645.08 : 151,313.14 = 66,609.92 : x
  2. Step 2: Convert to fraction form
    109,645.08/151,313.14 = 66,609.92/x
  3. Step 3: Cross multiply
    109,645.08x = 151,313.14 × 66,609.92
  4. Step 4: Simplify right side
    109,645.08x = 10,078,956,150.35
  5. Step 5: Solve for x
    x = 10,078,956,150.35/109,645.08
  6. Step 6: Final answer
    x = 91,923.47

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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.