Finding the Fourth Proportional to 146,413.84, 202,053.34 and 85,985.76
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Solution
The fourth proportional to 146,413.84, 202,053.34 and 85,985.76 is: 118,661.66
Step by Step Solution
- Step 1: Write the proportion equation
146,413.84 : 202,053.34 = 85,985.76 : x - Step 2: Convert to fraction form
146,413.84/202,053.34 = 85,985.76/x - Step 3: Cross multiply
146,413.84x = 202,053.34 × 85,985.76 - Step 4: Simplify right side
146,413.84x = 17,373,710,000.44 - Step 5: Solve for x
x = 17,373,710,000.44/146,413.84 - Step 6: Final answer
x = 118,661.66
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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.