Home / 143,939.29-215,911.64-49,191.16

Finding the Fourth Proportional to 143,939.29, 215,911.64 and 49,191.16

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Solution

The fourth proportional to 143,939.29, 215,911.64 and 49,191.16 is: 73,787.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,939.29 : 215,911.64 = 49,191.16 : x
  2. Step 2: Convert to fraction form
    143,939.29/215,911.64 = 49,191.16/x
  3. Step 3: Cross multiply
    143,939.29x = 215,911.64 × 49,191.16
  4. Step 4: Simplify right side
    143,939.29x = 10,620,944,029.10
  5. Step 5: Solve for x
    x = 10,620,944,029.10/143,939.29
  6. Step 6: Final answer
    x = 73,787.66

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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.