Finding the Fourth Proportional to 148,861.14, 205,432.26 and 85,219.44
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Solution
The fourth proportional to 148,861.14, 205,432.26 and 85,219.44 is: 117,605.05
Step by Step Solution
- Step 1: Write the proportion equation
148,861.14 : 205,432.26 = 85,219.44 : x - Step 2: Convert to fraction form
148,861.14/205,432.26 = 85,219.44/x - Step 3: Cross multiply
148,861.14x = 205,432.26 × 85,219.44 - Step 4: Simplify right side
148,861.14x = 17,506,822,155.13 - Step 5: Solve for x
x = 17,506,822,155.13/148,861.14 - Step 6: Final answer
x = 117,605.05
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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.