Home / 105,556.46-158,335.50-30,681.68

Finding the Fourth Proportional to 105,556.46, 158,335.50 and 30,681.68

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Solution

The fourth proportional to 105,556.46, 158,335.50 and 30,681.68 is: 46,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,556.46 : 158,335.50 = 30,681.68 : x
  2. Step 2: Convert to fraction form
    105,556.46/158,335.50 = 30,681.68/x
  3. Step 3: Cross multiply
    105,556.46x = 158,335.50 × 30,681.68
  4. Step 4: Simplify right side
    105,556.46x = 4,857,999,143.64
  5. Step 5: Solve for x
    x = 4,857,999,143.64/105,556.46
  6. Step 6: Final answer
    x = 46,022.76

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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.