Home / 214,617.33-296,139.04-128,556.15

Finding the Fourth Proportional to 214,617.33, 296,139.04 and 128,556.15

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Solution

The fourth proportional to 214,617.33, 296,139.04 and 128,556.15 is: 177,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,617.33 : 296,139.04 = 128,556.15 : x
  2. Step 2: Convert to fraction form
    214,617.33/296,139.04 = 128,556.15/x
  3. Step 3: Cross multiply
    214,617.33x = 296,139.04 × 128,556.15
  4. Step 4: Simplify right side
    214,617.33x = 38,070,493,415.18
  5. Step 5: Solve for x
    x = 38,070,493,415.18/214,617.33
  6. Step 6: Final answer
    x = 177,387.79

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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.