Home / 117,290.23-161,856.57-69,515.21

Finding the Fourth Proportional to 117,290.23, 161,856.57 and 69,515.21

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Solution

The fourth proportional to 117,290.23, 161,856.57 and 69,515.21 is: 95,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,290.23 : 161,856.57 = 69,515.21 : x
  2. Step 2: Convert to fraction form
    117,290.23/161,856.57 = 69,515.21/x
  3. Step 3: Cross multiply
    117,290.23x = 161,856.57 × 69,515.21
  4. Step 4: Simplify right side
    117,290.23x = 11,251,493,453.43
  5. Step 5: Solve for x
    x = 11,251,493,453.43/117,290.23
  6. Step 6: Final answer
    x = 95,928.65

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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.