Home / 107,369.12-161,035.32-28,491.32

Finding the Fourth Proportional to 107,369.12, 161,035.32 and 28,491.32

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Solution

The fourth proportional to 107,369.12, 161,035.32 and 28,491.32 is: 42,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,369.12 : 161,035.32 = 28,491.32 : x
  2. Step 2: Convert to fraction form
    107,369.12/161,035.32 = 28,491.32/x
  3. Step 3: Cross multiply
    107,369.12x = 161,035.32 × 28,491.32
  4. Step 4: Simplify right side
    107,369.12x = 4,588,108,833.42
  5. Step 5: Solve for x
    x = 4,588,108,833.42/107,369.12
  6. Step 6: Final answer
    x = 42,732.11

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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.