Finding the Fourth Proportional to 102,988.70, 154,741.86 and 65,565.48
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Solution
The fourth proportional to 102,988.70, 154,741.86 and 65,565.48 is: 98,512.99
Step by Step Solution
- Step 1: Write the proportion equation
102,988.70 : 154,741.86 = 65,565.48 : x - Step 2: Convert to fraction form
102,988.70/154,741.86 = 65,565.48/x - Step 3: Cross multiply
102,988.70x = 154,741.86 × 65,565.48 - Step 4: Simplify right side
102,988.70x = 10,145,724,326.99 - Step 5: Solve for x
x = 10,145,724,326.99/102,988.70 - Step 6: Final answer
x = 98,512.99
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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.