Finding the Fourth Proportional to 156,413.73, 215,852.05 and 84,794.88
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Solution
The fourth proportional to 156,413.73, 215,852.05 and 84,794.88 is: 117,017.53
Step by Step Solution
- Step 1: Write the proportion equation
156,413.73 : 215,852.05 = 84,794.88 : x - Step 2: Convert to fraction form
156,413.73/215,852.05 = 84,794.88/x - Step 3: Cross multiply
156,413.73x = 215,852.05 × 84,794.88 - Step 4: Simplify right side
156,413.73x = 18,303,147,386.26 - Step 5: Solve for x
x = 18,303,147,386.26/156,413.73 - Step 6: Final answer
x = 117,017.53
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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.