Finding the Fourth Proportional to 156,501.79, 215,977.36 and 88,517.44
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Solution
The fourth proportional to 156,501.79, 215,977.36 and 88,517.44 is: 122,156.82
Step by Step Solution
- Step 1: Write the proportion equation
156,501.79 : 215,977.36 = 88,517.44 : x - Step 2: Convert to fraction form
156,501.79/215,977.36 = 88,517.44/x - Step 3: Cross multiply
156,501.79x = 215,977.36 × 88,517.44 - Step 4: Simplify right side
156,501.79x = 19,117,761,925.27 - Step 5: Solve for x
x = 19,117,761,925.27/156,501.79 - Step 6: Final answer
x = 122,156.82
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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.