Home / 105,960.80-146,229.30-58,215.20

Finding the Fourth Proportional to 105,960.80, 146,229.30 and 58,215.20

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Solution

The fourth proportional to 105,960.80, 146,229.30 and 58,215.20 is: 80,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,960.80 : 146,229.30 = 58,215.20 : x
  2. Step 2: Convert to fraction form
    105,960.80/146,229.30 = 58,215.20/x
  3. Step 3: Cross multiply
    105,960.80x = 146,229.30 × 58,215.20
  4. Step 4: Simplify right side
    105,960.80x = 8,512,767,945.36
  5. Step 5: Solve for x
    x = 8,512,767,945.36/105,960.80
  6. Step 6: Final answer
    x = 80,338.84

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1.5x scale

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.