Home / 199,778.08-299,441.04-81,300.64

Finding the Fourth Proportional to 199,778.08, 299,441.04 and 81,300.64

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Solution

The fourth proportional to 199,778.08, 299,441.04 and 81,300.64 is: 121,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,778.08 : 299,441.04 = 81,300.64 : x
  2. Step 2: Convert to fraction form
    199,778.08/299,441.04 = 81,300.64/x
  3. Step 3: Cross multiply
    199,778.08x = 299,441.04 × 81,300.64
  4. Step 4: Simplify right side
    199,778.08x = 24,344,748,194.27
  5. Step 5: Solve for x
    x = 24,344,748,194.27/199,778.08
  6. Step 6: Final answer
    x = 121,858.96

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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.