Finding the Fourth Proportional to 156,186.27, 215,536.14 and 84,564.81
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Solution
The fourth proportional to 156,186.27, 215,536.14 and 84,564.81 is: 116,698.94
Step by Step Solution
- Step 1: Write the proportion equation
156,186.27 : 215,536.14 = 84,564.81 : x - Step 2: Convert to fraction form
156,186.27/215,536.14 = 84,564.81/x - Step 3: Cross multiply
156,186.27x = 215,536.14 × 84,564.81 - Step 4: Simplify right side
156,186.27x = 18,226,772,727.23 - Step 5: Solve for x
x = 18,226,772,727.23/156,186.27 - Step 6: Final answer
x = 116,698.94
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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.