Home / 107,845.81-161,769.75-28,960.05

Finding the Fourth Proportional to 107,845.81, 161,769.75 and 28,960.05

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Solution

The fourth proportional to 107,845.81, 161,769.75 and 28,960.05 is: 43,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,845.81 : 161,769.75 = 28,960.05 : x
  2. Step 2: Convert to fraction form
    107,845.81/161,769.75 = 28,960.05/x
  3. Step 3: Cross multiply
    107,845.81x = 161,769.75 × 28,960.05
  4. Step 4: Simplify right side
    107,845.81x = 4,684,860,048.49
  5. Step 5: Solve for x
    x = 4,684,860,048.49/107,845.81
  6. Step 6: Final answer
    x = 43,440.35

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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.