Home / 161,403.04-242,329.20-82,571.68

Finding the Fourth Proportional to 161,403.04, 242,329.20 and 82,571.68

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Solution

The fourth proportional to 161,403.04, 242,329.20 and 82,571.68 is: 123,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,403.04 : 242,329.20 = 82,571.68 : x
  2. Step 2: Convert to fraction form
    161,403.04/242,329.20 = 82,571.68/x
  3. Step 3: Cross multiply
    161,403.04x = 242,329.20 × 82,571.68
  4. Step 4: Simplify right side
    161,403.04x = 20,009,529,157.06
  5. Step 5: Solve for x
    x = 20,009,529,157.06/161,403.04
  6. Step 6: Final answer
    x = 123,972.44

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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.