Home / 113,382.97-156,416.15-73,109.67

Finding the Fourth Proportional to 113,382.97, 156,416.15 and 73,109.67

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Solution

The fourth proportional to 113,382.97, 156,416.15 and 73,109.67 is: 100,857.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,382.97 : 156,416.15 = 73,109.67 : x
  2. Step 2: Convert to fraction form
    113,382.97/156,416.15 = 73,109.67/x
  3. Step 3: Cross multiply
    113,382.97x = 156,416.15 × 73,109.67
  4. Step 4: Simplify right side
    113,382.97x = 11,435,531,961.54
  5. Step 5: Solve for x
    x = 11,435,531,961.54/113,382.97
  6. Step 6: Final answer
    x = 100,857.58

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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.