Home / 104,621.36-156,836.39-45,435.74

Finding the Fourth Proportional to 104,621.36, 156,836.39 and 45,435.74

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Solution

The fourth proportional to 104,621.36, 156,836.39 and 45,435.74 is: 68,112.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,621.36 : 156,836.39 = 45,435.74 : x
  2. Step 2: Convert to fraction form
    104,621.36/156,836.39 = 45,435.74/x
  3. Step 3: Cross multiply
    104,621.36x = 156,836.39 × 45,435.74
  4. Step 4: Simplify right side
    104,621.36x = 7,125,976,427.22
  5. Step 5: Solve for x
    x = 7,125,976,427.22/104,621.36
  6. Step 6: Final answer
    x = 68,112.06

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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.