Finding the Fourth Proportional to 109,068.57, 163,690.35 and 56,493.09
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Solution
The fourth proportional to 109,068.57, 163,690.35 and 56,493.09 is: 84,784.95
Step by Step Solution
- Step 1: Write the proportion equation
109,068.57 : 163,690.35 = 56,493.09 : x - Step 2: Convert to fraction form
109,068.57/163,690.35 = 56,493.09/x - Step 3: Cross multiply
109,068.57x = 163,690.35 × 56,493.09 - Step 4: Simplify right side
109,068.57x = 9,247,372,573.76 - Step 5: Solve for x
x = 9,247,372,573.76/109,068.57 - Step 6: Final answer
x = 84,784.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.