Finding the Fourth Proportional to 132,890.70, 199,374.45 and 39,398.70
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Solution
The fourth proportional to 132,890.70, 199,374.45 and 39,398.70 is: 59,109.43
Step by Step Solution
- Step 1: Write the proportion equation
132,890.70 : 199,374.45 = 39,398.70 : x - Step 2: Convert to fraction form
132,890.70/199,374.45 = 39,398.70/x - Step 3: Cross multiply
132,890.70x = 199,374.45 × 39,398.70 - Step 4: Simplify right side
132,890.70x = 7,855,094,143.22 - Step 5: Solve for x
x = 7,855,094,143.22/132,890.70 - Step 6: Final answer
x = 59,109.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.