Home / 143,558.39-215,352.32-54,886.48

Finding the Fourth Proportional to 143,558.39, 215,352.32 and 54,886.48

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Solution

The fourth proportional to 143,558.39, 215,352.32 and 54,886.48 is: 82,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,558.39 : 215,352.32 = 54,886.48 : x
  2. Step 2: Convert to fraction form
    143,558.39/215,352.32 = 54,886.48/x
  3. Step 3: Cross multiply
    143,558.39x = 215,352.32 × 54,886.48
  4. Step 4: Simplify right side
    143,558.39x = 11,819,930,300.56
  5. Step 5: Solve for x
    x = 11,819,930,300.56/143,558.39
  6. Step 6: Final answer
    x = 82,335.35

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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.