Home / 179,992.40-269,815.80-139,989.20

Finding the Fourth Proportional to 179,992.40, 269,815.80 and 139,989.20

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Solution

The fourth proportional to 179,992.40, 269,815.80 and 139,989.20 is: 209,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,992.40 : 269,815.80 = 139,989.20 : x
  2. Step 2: Convert to fraction form
    179,992.40/269,815.80 = 139,989.20/x
  3. Step 3: Cross multiply
    179,992.40x = 269,815.80 × 139,989.20
  4. Step 4: Simplify right side
    179,992.40x = 37,771,297,989.36
  5. Step 5: Solve for x
    x = 37,771,297,989.36/179,992.40
  6. Step 6: Final answer
    x = 209,849.40

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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.