Finding the Fourth Proportional to 158,269.99, 218,413.23 and 86,656.68
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Solution
The fourth proportional to 158,269.99, 218,413.23 and 86,656.68 is: 119,586.56
Step by Step Solution
- Step 1: Write the proportion equation
158,269.99 : 218,413.23 = 86,656.68 : x - Step 2: Convert to fraction form
158,269.99/218,413.23 = 86,656.68/x - Step 3: Cross multiply
158,269.99x = 218,413.23 × 86,656.68 - Step 4: Simplify right side
158,269.99x = 18,926,963,854.53 - Step 5: Solve for x
x = 18,926,963,854.53/158,269.99 - Step 6: Final answer
x = 119,586.56
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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.