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Finding the Fourth Proportional to 105,613.88, 158,420.81 and 35,493.19

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Solution

The fourth proportional to 105,613.88, 158,420.81 and 35,493.19 is: 53,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,613.88 : 158,420.81 = 35,493.19 : x
  2. Step 2: Convert to fraction form
    105,613.88/158,420.81 = 35,493.19/x
  3. Step 3: Cross multiply
    105,613.88x = 158,420.81 × 35,493.19
  4. Step 4: Simplify right side
    105,613.88x = 5,622,859,601.96
  5. Step 5: Solve for x
    x = 5,622,859,601.96/105,613.88
  6. Step 6: Final answer
    x = 53,239.78

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1.5x scale

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.