Finding the Fourth Proportional to 134,905.84, 186,160.50 and 74,466.78
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Solution
The fourth proportional to 134,905.84, 186,160.50 and 74,466.78 is: 102,758.88
Step by Step Solution
- Step 1: Write the proportion equation
134,905.84 : 186,160.50 = 74,466.78 : x - Step 2: Convert to fraction form
134,905.84/186,160.50 = 74,466.78/x - Step 3: Cross multiply
134,905.84x = 186,160.50 × 74,466.78 - Step 4: Simplify right side
134,905.84x = 13,862,772,998.19 - Step 5: Solve for x
x = 13,862,772,998.19/134,905.84 - Step 6: Final answer
x = 102,758.88
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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.