Home / 118,976.30-178,113.81-104,214.05

Finding the Fourth Proportional to 118,976.30, 178,113.81 and 104,214.05

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Solution

The fourth proportional to 118,976.30, 178,113.81 and 104,214.05 is: 156,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,976.30 : 178,113.81 = 104,214.05 : x
  2. Step 2: Convert to fraction form
    118,976.30/178,113.81 = 104,214.05/x
  3. Step 3: Cross multiply
    118,976.30x = 178,113.81 × 104,214.05
  4. Step 4: Simplify right side
    118,976.30x = 18,561,961,501.03
  5. Step 5: Solve for x
    x = 18,561,961,501.03/118,976.30
  6. Step 6: Final answer
    x = 156,013.94

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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.