Home / 190,413.09-262,770.28-105,530.22

Finding the Fourth Proportional to 190,413.09, 262,770.28 and 105,530.22

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Solution

The fourth proportional to 190,413.09, 262,770.28 and 105,530.22 is: 145,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,413.09 : 262,770.28 = 105,530.22 : x
  2. Step 2: Convert to fraction form
    190,413.09/262,770.28 = 105,530.22/x
  3. Step 3: Cross multiply
    190,413.09x = 262,770.28 × 105,530.22
  4. Step 4: Simplify right side
    190,413.09x = 27,730,205,194.04
  5. Step 5: Solve for x
    x = 27,730,205,194.04/190,413.09
  6. Step 6: Final answer
    x = 145,631.82

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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.