Home / 224,197.11-309,329.42-128,668.95

Finding the Fourth Proportional to 224,197.11, 309,329.42 and 128,668.95

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Solution

The fourth proportional to 224,197.11, 309,329.42 and 128,668.95 is: 177,527.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,197.11 : 309,329.42 = 128,668.95 : x
  2. Step 2: Convert to fraction form
    224,197.11/309,329.42 = 128,668.95/x
  3. Step 3: Cross multiply
    224,197.11x = 309,329.42 × 128,668.95
  4. Step 4: Simplify right side
    224,197.11x = 39,801,091,032.16
  5. Step 5: Solve for x
    x = 39,801,091,032.16/224,197.11
  6. Step 6: Final answer
    x = 177,527.23

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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.