Home / 143,345.25-215,017.89-49,851

Finding the Fourth Proportional to 143,345.25, 215,017.89 and 49,851

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Solution

The fourth proportional to 143,345.25, 215,017.89 and 49,851 is: 74,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,345.25 : 215,017.89 = 49,851 : x
  2. Step 2: Convert to fraction form
    143,345.25/215,017.89 = 49,851/x
  3. Step 3: Cross multiply
    143,345.25x = 215,017.89 × 49,851
  4. Step 4: Simplify right side
    143,345.25x = 10,718,856,834.39
  5. Step 5: Solve for x
    x = 10,718,856,834.39/143,345.25
  6. Step 6: Final answer
    x = 74,776.51

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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.