Home / 209,908.49-289,665.18-114,413.13

Finding the Fourth Proportional to 209,908.49, 289,665.18 and 114,413.13

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Solution

The fourth proportional to 209,908.49, 289,665.18 and 114,413.13 is: 157,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,908.49 : 289,665.18 = 114,413.13 : x
  2. Step 2: Convert to fraction form
    209,908.49/289,665.18 = 114,413.13/x
  3. Step 3: Cross multiply
    209,908.49x = 289,665.18 × 114,413.13
  4. Step 4: Simplify right side
    209,908.49x = 33,141,499,895.81
  5. Step 5: Solve for x
    x = 33,141,499,895.81/209,908.49
  6. Step 6: Final answer
    x = 157,885.47

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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.