Home / 104,162.47-143,704.57-77,003.77

Finding the Fourth Proportional to 104,162.47, 143,704.57 and 77,003.77

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Solution

The fourth proportional to 104,162.47, 143,704.57 and 77,003.77 is: 106,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,162.47 : 143,704.57 = 77,003.77 : x
  2. Step 2: Convert to fraction form
    104,162.47/143,704.57 = 77,003.77/x
  3. Step 3: Cross multiply
    104,162.47x = 143,704.57 × 77,003.77
  4. Step 4: Simplify right side
    104,162.47x = 11,065,792,552.69
  5. Step 5: Solve for x
    x = 11,065,792,552.69/104,162.47
  6. Step 6: Final answer
    x = 106,235.89

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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.