Finding the Fourth Proportional to 113,116.68, 156,108.24 and 62,815.68
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Solution
The fourth proportional to 113,116.68, 156,108.24 and 62,815.68 is: 86,689.65
Step by Step Solution
- Step 1: Write the proportion equation
113,116.68 : 156,108.24 = 62,815.68 : x - Step 2: Convert to fraction form
113,116.68/156,108.24 = 62,815.68/x - Step 3: Cross multiply
113,116.68x = 156,108.24 × 62,815.68 - Step 4: Simplify right side
113,116.68x = 9,806,045,249.20 - Step 5: Solve for x
x = 9,806,045,249.20/113,116.68 - Step 6: Final answer
x = 86,689.65
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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.