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Finding the Fourth Proportional to 161,995.20, 242,992.80 and 120,004.80

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Solution

The fourth proportional to 161,995.20, 242,992.80 and 120,004.80 is: 180,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,995.20 : 242,992.80 = 120,004.80 : x
  2. Step 2: Convert to fraction form
    161,995.20/242,992.80 = 120,004.80/x
  3. Step 3: Cross multiply
    161,995.20x = 242,992.80 × 120,004.80
  4. Step 4: Simplify right side
    161,995.20x = 29,160,302,365.44
  5. Step 5: Solve for x
    x = 29,160,302,365.44/161,995.20
  6. Step 6: Final answer
    x = 180,007.20

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1.5x scale

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.