Finding the Fourth Proportional to 129,417.61, 194,088.11 and 58,299.14
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Solution
The fourth proportional to 129,417.61, 194,088.11 and 58,299.14 is: 87,431.45
Step by Step Solution
- Step 1: Write the proportion equation
129,417.61 : 194,088.11 = 58,299.14 : x - Step 2: Convert to fraction form
129,417.61/194,088.11 = 58,299.14/x - Step 3: Cross multiply
129,417.61x = 194,088.11 × 58,299.14 - Step 4: Simplify right side
129,417.61x = 11,315,169,897.23 - Step 5: Solve for x
x = 11,315,169,897.23/129,417.61 - Step 6: Final answer
x = 87,431.45
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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.