Home / 131,852.45-181,952.64-77,403.75

Finding the Fourth Proportional to 131,852.45, 181,952.64 and 77,403.75

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Solution

The fourth proportional to 131,852.45, 181,952.64 and 77,403.75 is: 106,814.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,852.45 : 181,952.64 = 77,403.75 : x
  2. Step 2: Convert to fraction form
    131,852.45/181,952.64 = 77,403.75/x
  3. Step 3: Cross multiply
    131,852.45x = 181,952.64 × 77,403.75
  4. Step 4: Simplify right side
    131,852.45x = 14,083,815,850.98
  5. Step 5: Solve for x
    x = 14,083,815,850.98/131,852.45
  6. Step 6: Final answer
    x = 106,814.97

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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.