Home / 107,530.32-161,173.83-54,137.45

Finding the Fourth Proportional to 107,530.32, 161,173.83 and 54,137.45

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Solution

The fourth proportional to 107,530.32, 161,173.83 and 54,137.45 is: 81,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,530.32 : 161,173.83 = 54,137.45 : x
  2. Step 2: Convert to fraction form
    107,530.32/161,173.83 = 54,137.45/x
  3. Step 3: Cross multiply
    107,530.32x = 161,173.83 × 54,137.45
  4. Step 4: Simplify right side
    107,530.32x = 8,725,540,162.93
  5. Step 5: Solve for x
    x = 8,725,540,162.93/107,530.32
  6. Step 6: Final answer
    x = 81,144.93

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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.