Finding the Fourth Proportional to 135,813.24, 187,413.47 and 75,383.90
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Solution
The fourth proportional to 135,813.24, 187,413.47 and 75,383.90 is: 104,024.89
Step by Step Solution
- Step 1: Write the proportion equation
135,813.24 : 187,413.47 = 75,383.90 : x - Step 2: Convert to fraction form
135,813.24/187,413.47 = 75,383.90/x - Step 3: Cross multiply
135,813.24x = 187,413.47 × 75,383.90 - Step 4: Simplify right side
135,813.24x = 14,127,956,967.15 - Step 5: Solve for x
x = 14,127,956,967.15/135,813.24 - Step 6: Final answer
x = 104,024.89
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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.