Home / 199,315.60-299,434.20-137,107.60

Finding the Fourth Proportional to 199,315.60, 299,434.20 and 137,107.60

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Solution

The fourth proportional to 199,315.60, 299,434.20 and 137,107.60 is: 205,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315.60 : 299,434.20 = 137,107.60 : x
  2. Step 2: Convert to fraction form
    199,315.60/299,434.20 = 137,107.60/x
  3. Step 3: Cross multiply
    199,315.60x = 299,434.20 × 137,107.60
  4. Step 4: Simplify right side
    199,315.60x = 41,054,704,519.92
  5. Step 5: Solve for x
    x = 41,054,704,519.92/199,315.60
  6. Step 6: Final answer
    x = 205,978.38

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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.