Finding the Fourth Proportional to 135,245.17, 186,634.96 and 74,819.17
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Solution
The fourth proportional to 135,245.17, 186,634.96 and 74,819.17 is: 103,248.59
Step by Step Solution
- Step 1: Write the proportion equation
135,245.17 : 186,634.96 = 74,819.17 : x - Step 2: Convert to fraction form
135,245.17/186,634.96 = 74,819.17/x - Step 3: Cross multiply
135,245.17x = 186,634.96 × 74,819.17 - Step 4: Simplify right side
135,245.17x = 13,963,872,800.18 - Step 5: Solve for x
x = 13,963,872,800.18/135,245.17 - Step 6: Final answer
x = 103,248.59
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1.5x scale
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.