Finding the Fourth Proportional to 97,639.96, 134,670.79 and 68,929.69
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Solution
The fourth proportional to 97,639.96, 134,670.79 and 68,929.69 is: 95,071.89
Step by Step Solution
- Step 1: Write the proportion equation
97,639.96 : 134,670.79 = 68,929.69 : x - Step 2: Convert to fraction form
97,639.96/134,670.79 = 68,929.69/x - Step 3: Cross multiply
97,639.96x = 134,670.79 × 68,929.69 - Step 4: Simplify right side
97,639.96x = 9,282,815,421.02 - Step 5: Solve for x
x = 9,282,815,421.02/97,639.96 - Step 6: Final answer
x = 95,071.89
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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.