Home / 140,620.06-194,055.54-79,379.14

Finding the Fourth Proportional to 140,620.06, 194,055.54 and 79,379.14

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Solution

The fourth proportional to 140,620.06, 194,055.54 and 79,379.14 is: 109,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,620.06 : 194,055.54 = 79,379.14 : x
  2. Step 2: Convert to fraction form
    140,620.06/194,055.54 = 79,379.14/x
  3. Step 3: Cross multiply
    140,620.06x = 194,055.54 × 79,379.14
  4. Step 4: Simplify right side
    140,620.06x = 15,403,961,877.44
  5. Step 5: Solve for x
    x = 15,403,961,877.44/140,620.06
  6. Step 6: Final answer
    x = 109,543.13

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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.