Home / 144,226.89-198,903.81-120,107.70

Finding the Fourth Proportional to 144,226.89, 198,903.81 and 120,107.70

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Solution

The fourth proportional to 144,226.89, 198,903.81 and 120,107.70 is: 165,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,226.89 : 198,903.81 = 120,107.70 : x
  2. Step 2: Convert to fraction form
    144,226.89/198,903.81 = 120,107.70/x
  3. Step 3: Cross multiply
    144,226.89x = 198,903.81 × 120,107.70
  4. Step 4: Simplify right side
    144,226.89x = 23,889,879,140.34
  5. Step 5: Solve for x
    x = 23,889,879,140.34/144,226.89
  6. Step 6: Final answer
    x = 165,640.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.