Finding the Fourth Proportional to 135,178.96, 186,545.02 and 74,748.28
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Solution
The fourth proportional to 135,178.96, 186,545.02 and 74,748.28 is: 103,151.55
Step by Step Solution
- Step 1: Write the proportion equation
135,178.96 : 186,545.02 = 74,748.28 : x - Step 2: Convert to fraction form
135,178.96/186,545.02 = 74,748.28/x - Step 3: Cross multiply
135,178.96x = 186,545.02 × 74,748.28 - Step 4: Simplify right side
135,178.96x = 13,943,919,387.57 - Step 5: Solve for x
x = 13,943,919,387.57/135,178.96 - Step 6: Final answer
x = 103,151.55
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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.