Home / 105,481.52-158,197.67-30,581.56

Finding the Fourth Proportional to 105,481.52, 158,197.67 and 30,581.56

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Solution

The fourth proportional to 105,481.52, 158,197.67 and 30,581.56 is: 45,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,481.52 : 158,197.67 = 30,581.56 : x
  2. Step 2: Convert to fraction form
    105,481.52/158,197.67 = 30,581.56/x
  3. Step 3: Cross multiply
    105,481.52x = 158,197.67 × 30,581.56
  4. Step 4: Simplify right side
    105,481.52x = 4,837,931,384.06
  5. Step 5: Solve for x
    x = 4,837,931,384.06/105,481.52
  6. Step 6: Final answer
    x = 45,865.20

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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.