Home / 118,817.78-178,236-34,579.08

Finding the Fourth Proportional to 118,817.78, 178,236 and 34,579.08

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Solution

The fourth proportional to 118,817.78, 178,236 and 34,579.08 is: 51,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,817.78 : 178,236 = 34,579.08 : x
  2. Step 2: Convert to fraction form
    118,817.78/178,236 = 34,579.08/x
  3. Step 3: Cross multiply
    118,817.78x = 178,236 × 34,579.08
  4. Step 4: Simplify right side
    118,817.78x = 6,163,236,902.88
  5. Step 5: Solve for x
    x = 6,163,236,902.88/118,817.78
  6. Step 6: Final answer
    x = 51,871.34

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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.