Finding the Fourth Proportional to 135,055.08, 186,389.10 and 74,639.88
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Solution
The fourth proportional to 135,055.08, 186,389.10 and 74,639.88 is: 103,010.27
Step by Step Solution
- Step 1: Write the proportion equation
135,055.08 : 186,389.10 = 74,639.88 : x - Step 2: Convert to fraction form
135,055.08/186,389.10 = 74,639.88/x - Step 3: Cross multiply
135,055.08x = 186,389.10 × 74,639.88 - Step 4: Simplify right side
135,055.08x = 13,912,060,057.31 - Step 5: Solve for x
x = 13,912,060,057.31/135,055.08 - Step 6: Final answer
x = 103,010.27
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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.