Finding the Fourth Proportional to 117,750.24, 162,413.00 and 77,451.12
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Solution
The fourth proportional to 117,750.24, 162,413.00 and 77,451.12 is: 106,828.39
Step by Step Solution
- Step 1: Write the proportion equation
117,750.24 : 162,413.00 = 77,451.12 : x - Step 2: Convert to fraction form
117,750.24/162,413.00 = 77,451.12/x - Step 3: Cross multiply
117,750.24x = 162,413.00 × 77,451.12 - Step 4: Simplify right side
117,750.24x = 12,579,068,655.75 - Step 5: Solve for x
x = 12,579,068,655.75/117,750.24 - Step 6: Final answer
x = 106,828.39
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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.