Home / 143,424.54-215,136.72-43,584.36

Finding the Fourth Proportional to 143,424.54, 215,136.72 and 43,584.36

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Solution

The fourth proportional to 143,424.54, 215,136.72 and 43,584.36 is: 65,376.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,424.54 : 215,136.72 = 43,584.36 : x
  2. Step 2: Convert to fraction form
    143,424.54/215,136.72 = 43,584.36/x
  3. Step 3: Cross multiply
    143,424.54x = 215,136.72 × 43,584.36
  4. Step 4: Simplify right side
    143,424.54x = 9,376,596,253.70
  5. Step 5: Solve for x
    x = 9,376,596,253.70/143,424.54
  6. Step 6: Final answer
    x = 65,376.51

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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.