Home / 105,933.78-146,189.49-58,188.21

Finding the Fourth Proportional to 105,933.78, 146,189.49 and 58,188.21

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Solution

The fourth proportional to 105,933.78, 146,189.49 and 58,188.21 is: 80,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,933.78 : 146,189.49 = 58,188.21 : x
  2. Step 2: Convert to fraction form
    105,933.78/146,189.49 = 58,188.21/x
  3. Step 3: Cross multiply
    105,933.78x = 146,189.49 × 58,188.21
  4. Step 4: Simplify right side
    105,933.78x = 8,506,504,743.91
  5. Step 5: Solve for x
    x = 8,506,504,743.91/105,933.78
  6. Step 6: Final answer
    x = 80,300.21

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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.