Home / 199,784.20-299,480.10-99,794.56

Finding the Fourth Proportional to 199,784.20, 299,480.10 and 99,794.56

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Solution

The fourth proportional to 199,784.20, 299,480.10 and 99,794.56 is: 149,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,784.20 : 299,480.10 = 99,794.56 : x
  2. Step 2: Convert to fraction form
    199,784.20/299,480.10 = 99,794.56/x
  3. Step 3: Cross multiply
    199,784.20x = 299,480.10 × 99,794.56
  4. Step 4: Simplify right side
    199,784.20x = 29,886,484,808.26
  5. Step 5: Solve for x
    x = 29,886,484,808.26/199,784.20
  6. Step 6: Final answer
    x = 149,593.84

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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.