Home / 107,431.48-161,134.38-28,551.76

Finding the Fourth Proportional to 107,431.48, 161,134.38 and 28,551.76

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Solution

The fourth proportional to 107,431.48, 161,134.38 and 28,551.76 is: 42,824.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,431.48 : 161,134.38 = 28,551.76 : x
  2. Step 2: Convert to fraction form
    107,431.48/161,134.38 = 28,551.76/x
  3. Step 3: Cross multiply
    107,431.48x = 161,134.38 × 28,551.76
  4. Step 4: Simplify right side
    107,431.48x = 4,600,670,145.51
  5. Step 5: Solve for x
    x = 4,600,670,145.51/107,431.48
  6. Step 6: Final answer
    x = 42,824.23

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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.