Finding the Fourth Proportional to 135,307.68, 186,816.48 and 84,340.80
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Solution
The fourth proportional to 135,307.68, 186,816.48 and 84,340.80 is: 116,447.58
Step by Step Solution
- Step 1: Write the proportion equation
135,307.68 : 186,816.48 = 84,340.80 : x - Step 2: Convert to fraction form
135,307.68/186,816.48 = 84,340.80/x - Step 3: Cross multiply
135,307.68x = 186,816.48 × 84,340.80 - Step 4: Simplify right side
135,307.68x = 15,756,251,376.38 - Step 5: Solve for x
x = 15,756,251,376.38/135,307.68 - Step 6: Final answer
x = 116,447.58
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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.