Home / 196,315.04-270,845.72-128,371.76

Finding the Fourth Proportional to 196,315.04, 270,845.72 and 128,371.76

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Solution

The fourth proportional to 196,315.04, 270,845.72 and 128,371.76 is: 177,107.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,315.04 : 270,845.72 = 128,371.76 : x
  2. Step 2: Convert to fraction form
    196,315.04/270,845.72 = 128,371.76/x
  3. Step 3: Cross multiply
    196,315.04x = 270,845.72 × 128,371.76
  4. Step 4: Simplify right side
    196,315.04x = 34,768,941,764.87
  5. Step 5: Solve for x
    x = 34,768,941,764.87/196,315.04
  6. Step 6: Final answer
    x = 177,107.89

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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.