Home / 105,923.78-146,177.38-58,178.16

Finding the Fourth Proportional to 105,923.78, 146,177.38 and 58,178.16

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Solution

The fourth proportional to 105,923.78, 146,177.38 and 58,178.16 is: 80,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,923.78 : 146,177.38 = 58,178.16 : x
  2. Step 2: Convert to fraction form
    105,923.78/146,177.38 = 58,178.16/x
  3. Step 3: Cross multiply
    105,923.78x = 146,177.38 × 58,178.16
  4. Step 4: Simplify right side
    105,923.78x = 8,504,331,002.02
  5. Step 5: Solve for x
    x = 8,504,331,002.02/105,923.78
  6. Step 6: Final answer
    x = 80,287.27

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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.