Finding the Fourth Proportional to 133,283.68, 183,936.42 and 72,858.42
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Solution
The fourth proportional to 133,283.68, 183,936.42 and 72,858.42 is: 100,547.32
Step by Step Solution
- Step 1: Write the proportion equation
133,283.68 : 183,936.42 = 72,858.42 : x - Step 2: Convert to fraction form
133,283.68/183,936.42 = 72,858.42/x - Step 3: Cross multiply
133,283.68x = 183,936.42 × 72,858.42 - Step 4: Simplify right side
133,283.68x = 13,401,316,941.66 - Step 5: Solve for x
x = 13,401,316,941.66/133,283.68 - Step 6: Final answer
x = 100,547.32
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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.