Home / 164,844.30-247,072.05-85,917.90

Finding the Fourth Proportional to 164,844.30, 247,072.05 and 85,917.90

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Solution

The fourth proportional to 164,844.30, 247,072.05 and 85,917.90 is: 128,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,844.30 : 247,072.05 = 85,917.90 : x
  2. Step 2: Convert to fraction form
    164,844.30/247,072.05 = 85,917.90/x
  3. Step 3: Cross multiply
    164,844.30x = 247,072.05 × 85,917.90
  4. Step 4: Simplify right side
    164,844.30x = 21,227,911,684.70
  5. Step 5: Solve for x
    x = 21,227,911,684.70/164,844.30
  6. Step 6: Final answer
    x = 128,775.53

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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.