Home / 190,198.12-262,488.30-105,323.08

Finding the Fourth Proportional to 190,198.12, 262,488.30 and 105,323.08

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Solution

The fourth proportional to 190,198.12, 262,488.30 and 105,323.08 is: 145,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,198.12 : 262,488.30 = 105,323.08 : x
  2. Step 2: Convert to fraction form
    190,198.12/262,488.30 = 105,323.08/x
  3. Step 3: Cross multiply
    190,198.12x = 262,488.30 × 105,323.08
  4. Step 4: Simplify right side
    190,198.12x = 27,646,076,219.96
  5. Step 5: Solve for x
    x = 27,646,076,219.96/190,198.12
  6. Step 6: Final answer
    x = 145,354.10

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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.