Home / 105,605.73-158,424.03-30,716.19

Finding the Fourth Proportional to 105,605.73, 158,424.03 and 30,716.19

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Solution

The fourth proportional to 105,605.73, 158,424.03 and 30,716.19 is: 46,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,605.73 : 158,424.03 = 30,716.19 : x
  2. Step 2: Convert to fraction form
    105,605.73/158,424.03 = 30,716.19/x
  3. Step 3: Cross multiply
    105,605.73x = 158,424.03 × 30,716.19
  4. Step 4: Simplify right side
    105,605.73x = 4,866,182,606.05
  5. Step 5: Solve for x
    x = 4,866,182,606.05/105,605.73
  6. Step 6: Final answer
    x = 46,078.77

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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.