Home / 205,148.42-283,097.22-128,708.63

Finding the Fourth Proportional to 205,148.42, 283,097.22 and 128,708.63

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Solution

The fourth proportional to 205,148.42, 283,097.22 and 128,708.63 is: 177,613.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,148.42 : 283,097.22 = 128,708.63 : x
  2. Step 2: Convert to fraction form
    205,148.42/283,097.22 = 128,708.63/x
  3. Step 3: Cross multiply
    205,148.42x = 283,097.22 × 128,708.63
  4. Step 4: Simplify right side
    205,148.42x = 36,437,055,343.01
  5. Step 5: Solve for x
    x = 36,437,055,343.01/205,148.42
  6. Step 6: Final answer
    x = 177,613.14

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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.