Finding the Fourth Proportional to 135,097.08, 186,434.28 and 74,666.40
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Solution
The fourth proportional to 135,097.08, 186,434.28 and 74,666.40 is: 103,039.80
Step by Step Solution
- Step 1: Write the proportion equation
135,097.08 : 186,434.28 = 74,666.40 : x - Step 2: Convert to fraction form
135,097.08/186,434.28 = 74,666.40/x - Step 3: Cross multiply
135,097.08x = 186,434.28 × 74,666.40 - Step 4: Simplify right side
135,097.08x = 13,920,376,524.19 - Step 5: Solve for x
x = 13,920,376,524.19/135,097.08 - Step 6: Final answer
x = 103,039.80
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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.