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Finding the Fourth Proportional to 131,230.58, 181,092.98 and 77,532.98

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Solution

The fourth proportional to 131,230.58, 181,092.98 and 77,532.98 is: 106,992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,230.58 : 181,092.98 = 77,532.98 : x
  2. Step 2: Convert to fraction form
    131,230.58/181,092.98 = 77,532.98/x
  3. Step 3: Cross multiply
    131,230.58x = 181,092.98 × 77,532.98
  4. Step 4: Simplify right side
    131,230.58x = 14,040,677,684.85
  5. Step 5: Solve for x
    x = 14,040,677,684.85/131,230.58
  6. Step 6: Final answer
    x = 106,992.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.