Home / 105,520.43-158,288.84-30,641.81

Finding the Fourth Proportional to 105,520.43, 158,288.84 and 30,641.81

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Solution

The fourth proportional to 105,520.43, 158,288.84 and 30,641.81 is: 45,965.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,520.43 : 158,288.84 = 30,641.81 : x
  2. Step 2: Convert to fraction form
    105,520.43/158,288.84 = 30,641.81/x
  3. Step 3: Cross multiply
    105,520.43x = 158,288.84 × 30,641.81
  4. Step 4: Simplify right side
    105,520.43x = 4,850,255,615.75
  5. Step 5: Solve for x
    x = 4,850,255,615.75/105,520.43
  6. Step 6: Final answer
    x = 45,965.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.