Finding the Fourth Proportional to 113,749.29, 156,972.96 and 62,762.49
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Solution
The fourth proportional to 113,749.29, 156,972.96 and 62,762.49 is: 86,611.65
Step by Step Solution
- Step 1: Write the proportion equation
113,749.29 : 156,972.96 = 62,762.49 : x - Step 2: Convert to fraction form
113,749.29/156,972.96 = 62,762.49/x - Step 3: Cross multiply
113,749.29x = 156,972.96 × 62,762.49 - Step 4: Simplify right side
113,749.29x = 9,852,013,832.27 - Step 5: Solve for x
x = 9,852,013,832.27/113,749.29 - Step 6: Final answer
x = 86,611.65
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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.