Home / 116,909.32-161,334.86-85,104.87

Finding the Fourth Proportional to 116,909.32, 161,334.86 and 85,104.87

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Solution

The fourth proportional to 116,909.32, 161,334.86 and 85,104.87 is: 117,444.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,909.32 : 161,334.86 = 85,104.87 : x
  2. Step 2: Convert to fraction form
    116,909.32/161,334.86 = 85,104.87/x
  3. Step 3: Cross multiply
    116,909.32x = 161,334.86 × 85,104.87
  4. Step 4: Simplify right side
    116,909.32x = 13,730,383,104.54
  5. Step 5: Solve for x
    x = 13,730,383,104.54/116,909.32
  6. Step 6: Final answer
    x = 117,444.73

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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.