Finding the Fourth Proportional to 156,152.84, 215,489.46 and 84,531.02
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Solution
The fourth proportional to 156,152.84, 215,489.46 and 84,531.02 is: 116,652.02
Step by Step Solution
- Step 1: Write the proportion equation
156,152.84 : 215,489.46 = 84,531.02 : x - Step 2: Convert to fraction form
156,152.84/215,489.46 = 84,531.02/x - Step 3: Cross multiply
156,152.84x = 215,489.46 × 84,531.02 - Step 4: Simplify right side
156,152.84x = 18,215,543,853.05 - Step 5: Solve for x
x = 18,215,543,853.05/156,152.84 - Step 6: Final answer
x = 116,652.02
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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.