Home / 103,935.07-143,429.97-56,188.41

Finding the Fourth Proportional to 103,935.07, 143,429.97 and 56,188.41

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Solution

The fourth proportional to 103,935.07, 143,429.97 and 56,188.41 is: 77,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,935.07 : 143,429.97 = 56,188.41 : x
  2. Step 2: Convert to fraction form
    103,935.07/143,429.97 = 56,188.41/x
  3. Step 3: Cross multiply
    103,935.07x = 143,429.97 × 56,188.41
  4. Step 4: Simplify right side
    103,935.07x = 8,059,101,960.65
  5. Step 5: Solve for x
    x = 8,059,101,960.65/103,935.07
  6. Step 6: Final answer
    x = 77,539.78

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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.