Finding the Fourth Proportional to 135,795.18, 187,419.84 and 79,206.54
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Solution
The fourth proportional to 135,795.18, 187,419.84 and 79,206.54 is: 109,318.14
Step by Step Solution
- Step 1: Write the proportion equation
135,795.18 : 187,419.84 = 79,206.54 : x - Step 2: Convert to fraction form
135,795.18/187,419.84 = 79,206.54/x - Step 3: Cross multiply
135,795.18x = 187,419.84 × 79,206.54 - Step 4: Simplify right side
135,795.18x = 14,844,877,053.75 - Step 5: Solve for x
x = 14,844,877,053.75/135,795.18 - Step 6: Final answer
x = 109,318.14
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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.