Finding the Fourth Proportional to 117,529.07, 162,204.45 and 69,128.68
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Solution
The fourth proportional to 117,529.07, 162,204.45 and 69,128.68 is: 95,406.02
Step by Step Solution
- Step 1: Write the proportion equation
117,529.07 : 162,204.45 = 69,128.68 : x - Step 2: Convert to fraction form
117,529.07/162,204.45 = 69,128.68/x - Step 3: Cross multiply
117,529.07x = 162,204.45 × 69,128.68 - Step 4: Simplify right side
117,529.07x = 11,212,979,980.61 - Step 5: Solve for x
x = 11,212,979,980.61/117,529.07 - Step 6: Final answer
x = 95,406.02
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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.