Home / 105,824.96-146,033.76-58,078.40

Finding the Fourth Proportional to 105,824.96, 146,033.76 and 58,078.40

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Solution

The fourth proportional to 105,824.96, 146,033.76 and 58,078.40 is: 80,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,824.96 : 146,033.76 = 58,078.40 : x
  2. Step 2: Convert to fraction form
    105,824.96/146,033.76 = 58,078.40/x
  3. Step 3: Cross multiply
    105,824.96x = 146,033.76 × 58,078.40
  4. Step 4: Simplify right side
    105,824.96x = 8,481,407,126.78
  5. Step 5: Solve for x
    x = 8,481,407,126.78/105,824.96
  6. Step 6: Final answer
    x = 80,145.62

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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.