Home / 196,015.68-270,401.93-128,072.43

Finding the Fourth Proportional to 196,015.68, 270,401.93 and 128,072.43

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Solution

The fourth proportional to 196,015.68, 270,401.93 and 128,072.43 is: 176,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,015.68 : 270,401.93 = 128,072.43 : x
  2. Step 2: Convert to fraction form
    196,015.68/270,401.93 = 128,072.43/x
  3. Step 3: Cross multiply
    196,015.68x = 270,401.93 × 128,072.43
  4. Step 4: Simplify right side
    196,015.68x = 34,631,032,251.75
  5. Step 5: Solve for x
    x = 34,631,032,251.75/196,015.68
  6. Step 6: Final answer
    x = 176,674.80

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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.