Home / 196,438.37-271,013.85-128,494.08

Finding the Fourth Proportional to 196,438.37, 271,013.85 and 128,494.08

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Solution

The fourth proportional to 196,438.37, 271,013.85 and 128,494.08 is: 177,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,438.37 : 271,013.85 = 128,494.08 : x
  2. Step 2: Convert to fraction form
    196,438.37/271,013.85 = 128,494.08/x
  3. Step 3: Cross multiply
    196,438.37x = 271,013.85 × 128,494.08
  4. Step 4: Simplify right side
    196,438.37x = 34,823,675,323.01
  5. Step 5: Solve for x
    x = 34,823,675,323.01/196,438.37
  6. Step 6: Final answer
    x = 177,275.33

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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.