Home / 194,464.80-291,697.20-99,986.40

Finding the Fourth Proportional to 194,464.80, 291,697.20 and 99,986.40

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Solution

The fourth proportional to 194,464.80, 291,697.20 and 99,986.40 is: 149,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,464.80 : 291,697.20 = 99,986.40 : x
  2. Step 2: Convert to fraction form
    194,464.80/291,697.20 = 99,986.40/x
  3. Step 3: Cross multiply
    194,464.80x = 291,697.20 × 99,986.40
  4. Step 4: Simplify right side
    194,464.80x = 29,165,752,918.08
  5. Step 5: Solve for x
    x = 29,165,752,918.08/194,464.80
  6. Step 6: Final answer
    x = 149,979.60

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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.