Finding the Fourth Proportional to 156,368.84, 215,787.08 and 84,747.84
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Solution
The fourth proportional to 156,368.84, 215,787.08 and 84,747.84 is: 116,950.98
Step by Step Solution
- Step 1: Write the proportion equation
156,368.84 : 215,787.08 = 84,747.84 : x - Step 2: Convert to fraction form
156,368.84/215,787.08 = 84,747.84/x - Step 3: Cross multiply
156,368.84x = 215,787.08 × 84,747.84 - Step 4: Simplify right side
156,368.84x = 18,287,488,929.91 - Step 5: Solve for x
x = 18,287,488,929.91/156,368.84 - Step 6: Final answer
x = 116,950.98
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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.