Finding the Fourth Proportional to 156,178.16, 215,526.36 and 84,558.96
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Solution
The fourth proportional to 156,178.16, 215,526.36 and 84,558.96 is: 116,691.64
Step by Step Solution
- Step 1: Write the proportion equation
156,178.16 : 215,526.36 = 84,558.96 : x - Step 2: Convert to fraction form
156,178.16/215,526.36 = 84,558.96/x - Step 3: Cross multiply
156,178.16x = 215,526.36 × 84,558.96 - Step 4: Simplify right side
156,178.16x = 18,224,684,854.19 - Step 5: Solve for x
x = 18,224,684,854.19/156,178.16 - Step 6: Final answer
x = 116,691.64
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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.