Home / 209,917.72-314,875.41-52,146.10

Finding the Fourth Proportional to 209,917.72, 314,875.41 and 52,146.10

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Solution

The fourth proportional to 209,917.72, 314,875.41 and 52,146.10 is: 78,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,917.72 : 314,875.41 = 52,146.10 : x
  2. Step 2: Convert to fraction form
    209,917.72/314,875.41 = 52,146.10/x
  3. Step 3: Cross multiply
    209,917.72x = 314,875.41 × 52,146.10
  4. Step 4: Simplify right side
    209,917.72x = 16,419,524,617.40
  5. Step 5: Solve for x
    x = 16,419,524,617.40/209,917.72
  6. Step 6: Final answer
    x = 78,218.86

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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.