Finding the Fourth Proportional to 135,657.84, 203,515.95 and 45,709.50
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Solution
The fourth proportional to 135,657.84, 203,515.95 and 45,709.50 is: 68,574.09
Step by Step Solution
- Step 1: Write the proportion equation
135,657.84 : 203,515.95 = 45,709.50 : x - Step 2: Convert to fraction form
135,657.84/203,515.95 = 45,709.50/x - Step 3: Cross multiply
135,657.84x = 203,515.95 × 45,709.50 - Step 4: Simplify right side
135,657.84x = 9,302,612,316.53 - Step 5: Solve for x
x = 9,302,612,316.53/135,657.84 - Step 6: Final answer
x = 68,574.09
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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.