Home / 105,899.85-146,142.81-58,154.19

Finding the Fourth Proportional to 105,899.85, 146,142.81 and 58,154.19

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Solution

The fourth proportional to 105,899.85, 146,142.81 and 58,154.19 is: 80,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,899.85 : 146,142.81 = 58,154.19 : x
  2. Step 2: Convert to fraction form
    105,899.85/146,142.81 = 58,154.19/x
  3. Step 3: Cross multiply
    105,899.85x = 146,142.81 × 58,154.19
  4. Step 4: Simplify right side
    105,899.85x = 8,498,816,739.87
  5. Step 5: Solve for x
    x = 8,498,816,739.87/105,899.85
  6. Step 6: Final answer
    x = 80,253.34

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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.