Home / 105,928.50-146,178.81-58,181.70

Finding the Fourth Proportional to 105,928.50, 146,178.81 and 58,181.70

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Solution

The fourth proportional to 105,928.50, 146,178.81 and 58,181.70 is: 80,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,928.50 : 146,178.81 = 58,181.70 : x
  2. Step 2: Convert to fraction form
    105,928.50/146,178.81 = 58,181.70/x
  3. Step 3: Cross multiply
    105,928.50x = 146,178.81 × 58,181.70
  4. Step 4: Simplify right side
    105,928.50x = 8,504,931,669.78
  5. Step 5: Solve for x
    x = 8,504,931,669.78/105,928.50
  6. Step 6: Final answer
    x = 80,289.36

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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.