Finding the Fourth Proportional to 156,368.14, 215,787.18 and 84,747.40
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Solution
The fourth proportional to 156,368.14, 215,787.18 and 84,747.40 is: 116,950.95
Step by Step Solution
- Step 1: Write the proportion equation
156,368.14 : 215,787.18 = 84,747.40 : x - Step 2: Convert to fraction form
156,368.14/215,787.18 = 84,747.40/x - Step 3: Cross multiply
156,368.14x = 215,787.18 × 84,747.40 - Step 4: Simplify right side
156,368.14x = 18,287,402,458.33 - Step 5: Solve for x
x = 18,287,402,458.33/156,368.14 - Step 6: Final answer
x = 116,950.95
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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.