Home / 196,157.53-270,627.77-128,213.74

Finding the Fourth Proportional to 196,157.53, 270,627.77 and 128,213.74

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Solution

The fourth proportional to 196,157.53, 270,627.77 and 128,213.74 is: 176,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,157.53 : 270,627.77 = 128,213.74 : x
  2. Step 2: Convert to fraction form
    196,157.53/270,627.77 = 128,213.74/x
  3. Step 3: Cross multiply
    196,157.53x = 270,627.77 × 128,213.74
  4. Step 4: Simplify right side
    196,157.53x = 34,698,198,539.56
  5. Step 5: Solve for x
    x = 34,698,198,539.56/196,157.53
  6. Step 6: Final answer
    x = 176,889.45

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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.