Finding the Fourth Proportional to 155,269.35, 214,434.36 and 106,996.79
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Solution
The fourth proportional to 155,269.35, 214,434.36 and 106,996.79 is: 147,767.66
Step by Step Solution
- Step 1: Write the proportion equation
155,269.35 : 214,434.36 = 106,996.79 : x - Step 2: Convert to fraction form
155,269.35/214,434.36 = 106,996.79/x - Step 3: Cross multiply
155,269.35x = 214,434.36 × 106,996.79 - Step 4: Simplify right side
155,269.35x = 22,943,788,721.79 - Step 5: Solve for x
x = 22,943,788,721.79/155,269.35 - Step 6: Final answer
x = 147,767.66
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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.