Finding the Fourth Proportional to 156,161.04, 215,502.12 and 84,541.02
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Solution
The fourth proportional to 156,161.04, 215,502.12 and 84,541.02 is: 116,666.55
Step by Step Solution
- Step 1: Write the proportion equation
156,161.04 : 215,502.12 = 84,541.02 : x - Step 2: Convert to fraction form
156,161.04/215,502.12 = 84,541.02/x - Step 3: Cross multiply
156,161.04x = 215,502.12 × 84,541.02 - Step 4: Simplify right side
156,161.04x = 18,218,769,036.96 - Step 5: Solve for x
x = 18,218,769,036.96/156,161.04 - Step 6: Final answer
x = 116,666.55
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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.