Finding the Fourth Proportional to 153,963.36, 212,351.76 and 106,296.48
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Solution
The fourth proportional to 153,963.36, 212,351.76 and 106,296.48 is: 146,607.90
Step by Step Solution
- Step 1: Write the proportion equation
153,963.36 : 212,351.76 = 106,296.48 : x - Step 2: Convert to fraction form
153,963.36/212,351.76 = 106,296.48/x - Step 3: Cross multiply
153,963.36x = 212,351.76 × 106,296.48 - Step 4: Simplify right side
153,963.36x = 22,572,244,609.80 - Step 5: Solve for x
x = 22,572,244,609.80/153,963.36 - Step 6: Final answer
x = 146,607.90
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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.