Finding the Fourth Proportional to 96,821.68, 145,108.80 and 78,110.54
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Solution
The fourth proportional to 96,821.68, 145,108.80 and 78,110.54 is: 117,066.00
Step by Step Solution
- Step 1: Write the proportion equation
96,821.68 : 145,108.80 = 78,110.54 : x - Step 2: Convert to fraction form
96,821.68/145,108.80 = 78,110.54/x - Step 3: Cross multiply
96,821.68x = 145,108.80 × 78,110.54 - Step 4: Simplify right side
96,821.68x = 11,334,526,726.75 - Step 5: Solve for x
x = 11,334,526,726.75/96,821.68 - Step 6: Final answer
x = 117,066.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.