Finding the Fourth Proportional to 97,129.17, 133,838.46 and 74,466.99
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Solution
The fourth proportional to 97,129.17, 133,838.46 and 74,466.99 is: 102,611.27
Step by Step Solution
- Step 1: Write the proportion equation
97,129.17 : 133,838.46 = 74,466.99 : x - Step 2: Convert to fraction form
97,129.17/133,838.46 = 74,466.99/x - Step 3: Cross multiply
97,129.17x = 133,838.46 × 74,466.99 - Step 4: Simplify right side
97,129.17x = 9,966,547,262.44 - Step 5: Solve for x
x = 9,966,547,262.44/97,129.17 - Step 6: Final answer
x = 102,611.27
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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.