Home / 130,114.78-194,860.32-66,768.28

Finding the Fourth Proportional to 130,114.78, 194,860.32 and 66,768.28

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Solution

The fourth proportional to 130,114.78, 194,860.32 and 66,768.28 is: 99,992.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,114.78 : 194,860.32 = 66,768.28 : x
  2. Step 2: Convert to fraction form
    130,114.78/194,860.32 = 66,768.28/x
  3. Step 3: Cross multiply
    130,114.78x = 194,860.32 × 66,768.28
  4. Step 4: Simplify right side
    130,114.78x = 13,010,488,406.65
  5. Step 5: Solve for x
    x = 13,010,488,406.65/130,114.78
  6. Step 6: Final answer
    x = 99,992.39

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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.