Home / 208,413.15-287,606.39-117,767.16

Finding the Fourth Proportional to 208,413.15, 287,606.39 and 117,767.16

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Solution

The fourth proportional to 208,413.15, 287,606.39 and 117,767.16 is: 162,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,413.15 : 287,606.39 = 117,767.16 : x
  2. Step 2: Convert to fraction form
    208,413.15/287,606.39 = 117,767.16/x
  3. Step 3: Cross multiply
    208,413.15x = 287,606.39 × 117,767.16
  4. Step 4: Simplify right side
    208,413.15x = 33,870,587,748.15
  5. Step 5: Solve for x
    x = 33,870,587,748.15/208,413.15
  6. Step 6: Final answer
    x = 162,516.56

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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.