Home / 194,971.20-292,456.80-131,985.60

Finding the Fourth Proportional to 194,971.20, 292,456.80 and 131,985.60

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Solution

The fourth proportional to 194,971.20, 292,456.80 and 131,985.60 is: 197,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,971.20 : 292,456.80 = 131,985.60 : x
  2. Step 2: Convert to fraction form
    194,971.20/292,456.80 = 131,985.60/x
  3. Step 3: Cross multiply
    194,971.20x = 292,456.80 × 131,985.60
  4. Step 4: Simplify right side
    194,971.20x = 38,600,086,222.08
  5. Step 5: Solve for x
    x = 38,600,086,222.08/194,971.20
  6. Step 6: Final answer
    x = 197,978.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.