Home / 105,919.20-146,169.36-58,173.12

Finding the Fourth Proportional to 105,919.20, 146,169.36 and 58,173.12

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Solution

The fourth proportional to 105,919.20, 146,169.36 and 58,173.12 is: 80,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,919.20 : 146,169.36 = 58,173.12 : x
  2. Step 2: Convert to fraction form
    105,919.20/146,169.36 = 58,173.12/x
  3. Step 3: Cross multiply
    105,919.20x = 146,169.36 × 58,173.12
  4. Step 4: Simplify right side
    105,919.20x = 8,503,127,719.60
  5. Step 5: Solve for x
    x = 8,503,127,719.60/105,919.20
  6. Step 6: Final answer
    x = 80,279.38

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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.