Home / 196,166.61-270,640.23-128,222.75

Finding the Fourth Proportional to 196,166.61, 270,640.23 and 128,222.75

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Solution

The fourth proportional to 196,166.61, 270,640.23 and 128,222.75 is: 176,901.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,166.61 : 270,640.23 = 128,222.75 : x
  2. Step 2: Convert to fraction form
    196,166.61/270,640.23 = 128,222.75/x
  3. Step 3: Cross multiply
    196,166.61x = 270,640.23 × 128,222.75
  4. Step 4: Simplify right side
    196,166.61x = 34,702,234,551.23
  5. Step 5: Solve for x
    x = 34,702,234,551.23/196,166.61
  6. Step 6: Final answer
    x = 176,901.84

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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.