Home / 164,971.14-247,013.85-85,919.31

Finding the Fourth Proportional to 164,971.14, 247,013.85 and 85,919.31

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Solution

The fourth proportional to 164,971.14, 247,013.85 and 85,919.31 is: 128,648.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,971.14 : 247,013.85 = 85,919.31 : x
  2. Step 2: Convert to fraction form
    164,971.14/247,013.85 = 85,919.31/x
  3. Step 3: Cross multiply
    164,971.14x = 247,013.85 × 85,919.31
  4. Step 4: Simplify right side
    164,971.14x = 21,223,259,552.44
  5. Step 5: Solve for x
    x = 21,223,259,552.44/164,971.14
  6. Step 6: Final answer
    x = 128,648.32

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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.