Home / 105,409.74-158,135.79-38,850.24

Finding the Fourth Proportional to 105,409.74, 158,135.79 and 38,850.24

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Solution

The fourth proportional to 105,409.74, 158,135.79 and 38,850.24 is: 58,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,409.74 : 158,135.79 = 38,850.24 : x
  2. Step 2: Convert to fraction form
    105,409.74/158,135.79 = 38,850.24/x
  3. Step 3: Cross multiply
    105,409.74x = 158,135.79 × 38,850.24
  4. Step 4: Simplify right side
    105,409.74x = 6,143,613,394.09
  5. Step 5: Solve for x
    x = 6,143,613,394.09/105,409.74
  6. Step 6: Final answer
    x = 58,283.17

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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.