Finding the Fourth Proportional to 117,913.68, 162,717.12 and 70,156.08
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Solution
The fourth proportional to 117,913.68, 162,717.12 and 70,156.08 is: 96,813.15
Step by Step Solution
- Step 1: Write the proportion equation
117,913.68 : 162,717.12 = 70,156.08 : x - Step 2: Convert to fraction form
117,913.68/162,717.12 = 70,156.08/x - Step 3: Cross multiply
117,913.68x = 162,717.12 × 70,156.08 - Step 4: Simplify right side
117,913.68x = 11,415,595,288.09 - Step 5: Solve for x
x = 11,415,595,288.09/117,913.68 - Step 6: Final answer
x = 96,813.15
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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.