Home / 143,890.06-215,897.40-77,252.44

Finding the Fourth Proportional to 143,890.06, 215,897.40 and 77,252.44

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Solution

The fourth proportional to 143,890.06, 215,897.40 and 77,252.44 is: 115,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890.06 : 215,897.40 = 77,252.44 : x
  2. Step 2: Convert to fraction form
    143,890.06/215,897.40 = 77,252.44/x
  3. Step 3: Cross multiply
    143,890.06x = 215,897.40 × 77,252.44
  4. Step 4: Simplify right side
    143,890.06x = 16,678,600,939.66
  5. Step 5: Solve for x
    x = 16,678,600,939.66/143,890.06
  6. Step 6: Final answer
    x = 115,912.11

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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.