Home / 156,785.58-235,003.32-67,905.90

Finding the Fourth Proportional to 156,785.58, 235,003.32 and 67,905.90

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Solution

The fourth proportional to 156,785.58, 235,003.32 and 67,905.90 is: 101,783.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,785.58 : 235,003.32 = 67,905.90 : x
  2. Step 2: Convert to fraction form
    156,785.58/235,003.32 = 67,905.90/x
  3. Step 3: Cross multiply
    156,785.58x = 235,003.32 × 67,905.90
  4. Step 4: Simplify right side
    156,785.58x = 15,958,111,947.59
  5. Step 5: Solve for x
    x = 15,958,111,947.59/156,785.58
  6. Step 6: Final answer
    x = 101,783.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.