Home / 106,550.12-159,852.86-87,605.98

Finding the Fourth Proportional to 106,550.12, 159,852.86 and 87,605.98

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Solution

The fourth proportional to 106,550.12, 159,852.86 and 87,605.98 is: 131,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,550.12 : 159,852.86 = 87,605.98 : x
  2. Step 2: Convert to fraction form
    106,550.12/159,852.86 = 87,605.98/x
  3. Step 3: Cross multiply
    106,550.12x = 159,852.86 × 87,605.98
  4. Step 4: Simplify right side
    106,550.12x = 14,004,066,456.10
  5. Step 5: Solve for x
    x = 14,004,066,456.10/106,550.12
  6. Step 6: Final answer
    x = 131,431.73

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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.