Home / 161,908.03-242,858.40-73,137.70

Finding the Fourth Proportional to 161,908.03, 242,858.40 and 73,137.70

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Solution

The fourth proportional to 161,908.03, 242,858.40 and 73,137.70 is: 109,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,908.03 : 242,858.40 = 73,137.70 : x
  2. Step 2: Convert to fraction form
    161,908.03/242,858.40 = 73,137.70/x
  3. Step 3: Cross multiply
    161,908.03x = 242,858.40 × 73,137.70
  4. Step 4: Simplify right side
    161,908.03x = 17,762,104,801.68
  5. Step 5: Solve for x
    x = 17,762,104,801.68/161,908.03
  6. Step 6: Final answer
    x = 109,704.90

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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.