Home / 193,015.20-266,499.80-125,130.72

Finding the Fourth Proportional to 193,015.20, 266,499.80 and 125,130.72

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Solution

The fourth proportional to 193,015.20, 266,499.80 and 125,130.72 is: 172,770.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,015.20 : 266,499.80 = 125,130.72 : x
  2. Step 2: Convert to fraction form
    193,015.20/266,499.80 = 125,130.72/x
  3. Step 3: Cross multiply
    193,015.20x = 266,499.80 × 125,130.72
  4. Step 4: Simplify right side
    193,015.20x = 33,347,311,853.86
  5. Step 5: Solve for x
    x = 33,347,311,853.86/193,015.20
  6. Step 6: Final answer
    x = 172,770.39

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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.