Home / 112,478.72-168,634.03-68,094.78

Finding the Fourth Proportional to 112,478.72, 168,634.03 and 68,094.78

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Solution

The fourth proportional to 112,478.72, 168,634.03 and 68,094.78 is: 102,091.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,478.72 : 168,634.03 = 68,094.78 : x
  2. Step 2: Convert to fraction form
    112,478.72/168,634.03 = 68,094.78/x
  3. Step 3: Cross multiply
    112,478.72x = 168,634.03 × 68,094.78
  4. Step 4: Simplify right side
    112,478.72x = 11,483,097,173.36
  5. Step 5: Solve for x
    x = 11,483,097,173.36/112,478.72
  6. Step 6: Final answer
    x = 102,091.29

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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.