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Finding the Fourth Proportional to 143,322.29, 215,069.84 and 49,893.65

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Solution

The fourth proportional to 143,322.29, 215,069.84 and 49,893.65 is: 74,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,322.29 : 215,069.84 = 49,893.65 : x
  2. Step 2: Convert to fraction form
    143,322.29/215,069.84 = 49,893.65/x
  3. Step 3: Cross multiply
    143,322.29x = 215,069.84 × 49,893.65
  4. Step 4: Simplify right side
    143,322.29x = 10,730,619,322.52
  5. Step 5: Solve for x
    x = 10,730,619,322.52/143,322.29
  6. Step 6: Final answer
    x = 74,870.55

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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.