Finding the Fourth Proportional to 138,038.10, 207,063.84 and 38,196.09
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Solution
The fourth proportional to 138,038.10, 207,063.84 and 38,196.09 is: 57,295.99
Step by Step Solution
- Step 1: Write the proportion equation
138,038.10 : 207,063.84 = 38,196.09 : x - Step 2: Convert to fraction form
138,038.10/207,063.84 = 38,196.09/x - Step 3: Cross multiply
138,038.10x = 207,063.84 × 38,196.09 - Step 4: Simplify right side
138,038.10x = 7,909,029,068.39 - Step 5: Solve for x
x = 7,909,029,068.39/138,038.10 - Step 6: Final answer
x = 57,295.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.