Finding the Fourth Proportional to 161,725.70, 242,588.55 and 91,741.70
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Solution
The fourth proportional to 161,725.70, 242,588.55 and 91,741.70 is: 137,612.55
Step by Step Solution
- Step 1: Write the proportion equation
161,725.70 : 242,588.55 = 91,741.70 : x - Step 2: Convert to fraction form
161,725.70/242,588.55 = 91,741.70/x - Step 3: Cross multiply
161,725.70x = 242,588.55 × 91,741.70 - Step 4: Simplify right side
161,725.70x = 22,255,485,977.54 - Step 5: Solve for x
x = 22,255,485,977.54/161,725.70 - Step 6: Final answer
x = 137,612.55
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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.