Home / 161,583.03-242,412.99-81,424.03

Finding the Fourth Proportional to 161,583.03, 242,412.99 and 81,424.03

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Solution

The fourth proportional to 161,583.03, 242,412.99 and 81,424.03 is: 122,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,583.03 : 242,412.99 = 81,424.03 : x
  2. Step 2: Convert to fraction form
    161,583.03/242,412.99 = 81,424.03/x
  3. Step 3: Cross multiply
    161,583.03x = 242,412.99 × 81,424.03
  4. Step 4: Simplify right side
    161,583.03x = 19,738,242,570.15
  5. Step 5: Solve for x
    x = 19,738,242,570.15/161,583.03
  6. Step 6: Final answer
    x = 122,155.42

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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.