Home / 199,628.20-299,240.70-99,634.60

Finding the Fourth Proportional to 199,628.20, 299,240.70 and 99,634.60

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Solution

The fourth proportional to 199,628.20, 299,240.70 and 99,634.60 is: 149,351.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,628.20 : 299,240.70 = 99,634.60 : x
  2. Step 2: Convert to fraction form
    199,628.20/299,240.70 = 99,634.60/x
  3. Step 3: Cross multiply
    199,628.20x = 299,240.70 × 99,634.60
  4. Step 4: Simplify right side
    199,628.20x = 29,814,727,448.22
  5. Step 5: Solve for x
    x = 29,814,727,448.22/199,628.20
  6. Step 6: Final answer
    x = 149,351.28

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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.