Finding the Fourth Proportional to 135,362.07, 186,801.35 and 74,938.32
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Solution
The fourth proportional to 135,362.07, 186,801.35 and 74,938.32 is: 103,415.82
Step by Step Solution
- Step 1: Write the proportion equation
135,362.07 : 186,801.35 = 74,938.32 : x - Step 2: Convert to fraction form
135,362.07/186,801.35 = 74,938.32/x - Step 3: Cross multiply
135,362.07x = 186,801.35 × 74,938.32 - Step 4: Simplify right side
135,362.07x = 13,998,578,968.04 - Step 5: Solve for x
x = 13,998,578,968.04/135,362.07 - Step 6: Final answer
x = 103,415.82
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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.