Finding the Fourth Proportional to 113,901.78, 170,853.30 and 74,707.14
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Solution
The fourth proportional to 113,901.78, 170,853.30 and 74,707.14 is: 112,061.12
Step by Step Solution
- Step 1: Write the proportion equation
113,901.78 : 170,853.30 = 74,707.14 : x - Step 2: Convert to fraction form
113,901.78/170,853.30 = 74,707.14/x - Step 3: Cross multiply
113,901.78x = 170,853.30 × 74,707.14 - Step 4: Simplify right side
113,901.78x = 12,763,961,402.56 - Step 5: Solve for x
x = 12,763,961,402.56/113,901.78 - Step 6: Final answer
x = 112,061.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.