Finding the Fourth Proportional to 134,684.18, 185,865.47 and 74,257.17
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Solution
The fourth proportional to 134,684.18, 185,865.47 and 74,257.17 is: 102,475.61
Step by Step Solution
- Step 1: Write the proportion equation
134,684.18 : 185,865.47 = 74,257.17 : x - Step 2: Convert to fraction form
134,684.18/185,865.47 = 74,257.17/x - Step 3: Cross multiply
134,684.18x = 185,865.47 × 74,257.17 - Step 4: Simplify right side
134,684.18x = 13,801,843,431.63 - Step 5: Solve for x
x = 13,801,843,431.63/134,684.18 - Step 6: Final answer
x = 102,475.61
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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.