Finding the Fourth Proportional to 156,185.79, 215,536.49 and 84,565.86
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Solution
The fourth proportional to 156,185.79, 215,536.49 and 84,565.86 is: 116,700.94
Step by Step Solution
- Step 1: Write the proportion equation
156,185.79 : 215,536.49 = 84,565.86 : x - Step 2: Convert to fraction form
156,185.79/215,536.49 = 84,565.86/x - Step 3: Cross multiply
156,185.79x = 215,536.49 × 84,565.86 - Step 4: Simplify right side
156,185.79x = 18,227,028,638.23 - Step 5: Solve for x
x = 18,227,028,638.23/156,185.79 - Step 6: Final answer
x = 116,700.94
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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.