Home / 139,959.02-209,918.88-40,127.73

Finding the Fourth Proportional to 139,959.02, 209,918.88 and 40,127.73

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Solution

The fourth proportional to 139,959.02, 209,918.88 and 40,127.73 is: 60,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,959.02 : 209,918.88 = 40,127.73 : x
  2. Step 2: Convert to fraction form
    139,959.02/209,918.88 = 40,127.73/x
  3. Step 3: Cross multiply
    139,959.02x = 209,918.88 × 40,127.73
  4. Step 4: Simplify right side
    139,959.02x = 8,423,568,138.54
  5. Step 5: Solve for x
    x = 8,423,568,138.54/139,959.02
  6. Step 6: Final answer
    x = 60,185.96

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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.