Home / 190,097.86-262,331.13-105,209.86

Finding the Fourth Proportional to 190,097.86, 262,331.13 and 105,209.86

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Solution

The fourth proportional to 190,097.86, 262,331.13 and 105,209.86 is: 145,187.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,097.86 : 262,331.13 = 105,209.86 : x
  2. Step 2: Convert to fraction form
    190,097.86/262,331.13 = 105,209.86/x
  3. Step 3: Cross multiply
    190,097.86x = 262,331.13 × 105,209.86
  4. Step 4: Simplify right side
    190,097.86x = 27,599,821,460.94
  5. Step 5: Solve for x
    x = 27,599,821,460.94/190,097.86
  6. Step 6: Final answer
    x = 145,187.44

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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.