Home / 214,768.94-296,387.91-128,699.55

Finding the Fourth Proportional to 214,768.94, 296,387.91 and 128,699.55

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Solution

The fourth proportional to 214,768.94, 296,387.91 and 128,699.55 is: 177,609.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,768.94 : 296,387.91 = 128,699.55 : x
  2. Step 2: Convert to fraction form
    214,768.94/296,387.91 = 128,699.55/x
  3. Step 3: Cross multiply
    214,768.94x = 296,387.91 × 128,699.55
  4. Step 4: Simplify right side
    214,768.94x = 38,144,990,642.44
  5. Step 5: Solve for x
    x = 38,144,990,642.44/214,768.94
  6. Step 6: Final answer
    x = 177,609.44

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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.