Home / 110,905.76-166,201.38-85,829.08

Finding the Fourth Proportional to 110,905.76, 166,201.38 and 85,829.08

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Solution

The fourth proportional to 110,905.76, 166,201.38 and 85,829.08 is: 128,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,905.76 : 166,201.38 = 85,829.08 : x
  2. Step 2: Convert to fraction form
    110,905.76/166,201.38 = 85,829.08/x
  3. Step 3: Cross multiply
    110,905.76x = 166,201.38 × 85,829.08
  4. Step 4: Simplify right side
    110,905.76x = 14,264,910,709.12
  5. Step 5: Solve for x
    x = 14,264,910,709.12/110,905.76
  6. Step 6: Final answer
    x = 128,621.91

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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.