Finding the Fourth Proportional to 135,203.58, 186,579.84 and 74,776.76
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Solution
The fourth proportional to 135,203.58, 186,579.84 and 74,776.76 is: 103,191.32
Step by Step Solution
- Step 1: Write the proportion equation
135,203.58 : 186,579.84 = 74,776.76 : x - Step 2: Convert to fraction form
135,203.58/186,579.84 = 74,776.76/x - Step 3: Cross multiply
135,203.58x = 186,579.84 × 74,776.76 - Step 4: Simplify right side
135,203.58x = 13,951,835,916.52 - Step 5: Solve for x
x = 13,951,835,916.52/135,203.58 - Step 6: Final answer
x = 103,191.32
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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.