Home / 199,480.04-298,961.53-81,013.76

Finding the Fourth Proportional to 199,480.04, 298,961.53 and 81,013.76

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Solution

The fourth proportional to 199,480.04, 298,961.53 and 81,013.76 is: 121,415.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,480.04 : 298,961.53 = 81,013.76 : x
  2. Step 2: Convert to fraction form
    199,480.04/298,961.53 = 81,013.76/x
  3. Step 3: Cross multiply
    199,480.04x = 298,961.53 × 81,013.76
  4. Step 4: Simplify right side
    199,480.04x = 24,219,997,640.65
  5. Step 5: Solve for x
    x = 24,219,997,640.65/199,480.04
  6. Step 6: Final answer
    x = 121,415.64

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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.