Home / 107,388.72-161,070.57-28,509.08

Finding the Fourth Proportional to 107,388.72, 161,070.57 and 28,509.08

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Solution

The fourth proportional to 107,388.72, 161,070.57 and 28,509.08 is: 42,760.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,388.72 : 161,070.57 = 28,509.08 : x
  2. Step 2: Convert to fraction form
    107,388.72/161,070.57 = 28,509.08/x
  3. Step 3: Cross multiply
    107,388.72x = 161,070.57 × 28,509.08
  4. Step 4: Simplify right side
    107,388.72x = 4,591,972,960.42
  5. Step 5: Solve for x
    x = 4,591,972,960.42/107,388.72
  6. Step 6: Final answer
    x = 42,760.29

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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.