Finding the Fourth Proportional to 137,331.84, 189,537.14 and 99,214.70
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Solution
The fourth proportional to 137,331.84, 189,537.14 and 99,214.70 is: 136,930.15
Step by Step Solution
- Step 1: Write the proportion equation
137,331.84 : 189,537.14 = 99,214.70 : x - Step 2: Convert to fraction form
137,331.84/189,537.14 = 99,214.70/x - Step 3: Cross multiply
137,331.84x = 189,537.14 × 99,214.70 - Step 4: Simplify right side
137,331.84x = 18,804,869,040.20 - Step 5: Solve for x
x = 18,804,869,040.20/137,331.84 - Step 6: Final answer
x = 136,930.15
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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.