Home / 113,635.23-156,724.60-99,993.82

Finding the Fourth Proportional to 113,635.23, 156,724.60 and 99,993.82

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Solution

The fourth proportional to 113,635.23, 156,724.60 and 99,993.82 is: 137,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,635.23 : 156,724.60 = 99,993.82 : x
  2. Step 2: Convert to fraction form
    113,635.23/156,724.60 = 99,993.82/x
  3. Step 3: Cross multiply
    113,635.23x = 156,724.60 × 99,993.82
  4. Step 4: Simplify right side
    113,635.23x = 15,671,491,441.97
  5. Step 5: Solve for x
    x = 15,671,491,441.97/113,635.23
  6. Step 6: Final answer
    x = 137,910.50

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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.