Finding the Fourth Proportional to 134,658.09, 185,830.47 and 74,228.31
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Solution
The fourth proportional to 134,658.09, 185,830.47 and 74,228.31 is: 102,436.34
Step by Step Solution
- Step 1: Write the proportion equation
134,658.09 : 185,830.47 = 74,228.31 : x - Step 2: Convert to fraction form
134,658.09/185,830.47 = 74,228.31/x - Step 3: Cross multiply
134,658.09x = 185,830.47 × 74,228.31 - Step 4: Simplify right side
134,658.09x = 13,793,881,734.61 - Step 5: Solve for x
x = 13,793,881,734.61/134,658.09 - Step 6: Final answer
x = 102,436.34
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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.