Finding the Fourth Proportional to 153,198.92, 211,413.98 and 86,130.92
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Solution
The fourth proportional to 153,198.92, 211,413.98 and 86,130.92 is: 118,860.37
Step by Step Solution
- Step 1: Write the proportion equation
153,198.92 : 211,413.98 = 86,130.92 : x - Step 2: Convert to fraction form
153,198.92/211,413.98 = 86,130.92/x - Step 3: Cross multiply
153,198.92x = 211,413.98 × 86,130.92 - Step 4: Simplify right side
153,198.92x = 18,209,280,598.26 - Step 5: Solve for x
x = 18,209,280,598.26/153,198.92 - Step 6: Final answer
x = 118,860.37
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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.