Home / 190,623.08-263,068.44-105,740.12

Finding the Fourth Proportional to 190,623.08, 263,068.44 and 105,740.12

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Solution

The fourth proportional to 190,623.08, 263,068.44 and 105,740.12 is: 145,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,623.08 : 263,068.44 = 105,740.12 : x
  2. Step 2: Convert to fraction form
    190,623.08/263,068.44 = 105,740.12/x
  3. Step 3: Cross multiply
    190,623.08x = 263,068.44 × 105,740.12
  4. Step 4: Simplify right side
    190,623.08x = 27,816,888,413.81
  5. Step 5: Solve for x
    x = 27,816,888,413.81/190,623.08
  6. Step 6: Final answer
    x = 145,926.13

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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.