Home / 107,420.92-161,131.48-28,533.20

Finding the Fourth Proportional to 107,420.92, 161,131.48 and 28,533.20

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Solution

The fourth proportional to 107,420.92, 161,131.48 and 28,533.20 is: 42,799.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,420.92 : 161,131.48 = 28,533.20 : x
  2. Step 2: Convert to fraction form
    107,420.92/161,131.48 = 28,533.20/x
  3. Step 3: Cross multiply
    107,420.92x = 161,131.48 × 28,533.20
  4. Step 4: Simplify right side
    107,420.92x = 4,597,595,868.15
  5. Step 5: Solve for x
    x = 4,597,595,868.15/107,420.92
  6. Step 6: Final answer
    x = 42,799.82

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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.