Home / 196,164.68-270,637.60-128,220.84

Finding the Fourth Proportional to 196,164.68, 270,637.60 and 128,220.84

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Solution

The fourth proportional to 196,164.68, 270,637.60 and 128,220.84 is: 176,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,164.68 : 270,637.60 = 128,220.84 : x
  2. Step 2: Convert to fraction form
    196,164.68/270,637.60 = 128,220.84/x
  3. Step 3: Cross multiply
    196,164.68x = 270,637.60 × 128,220.84
  4. Step 4: Simplify right side
    196,164.68x = 34,701,380,407.58
  5. Step 5: Solve for x
    x = 34,701,380,407.58/196,164.68
  6. Step 6: Final answer
    x = 176,899.23

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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.