Finding the Fourth Proportional to 153,905.57, 212,393.26 and 96,547.31
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Solution
The fourth proportional to 153,905.57, 212,393.26 and 96,547.31 is: 133,237.52
Step by Step Solution
- Step 1: Write the proportion equation
153,905.57 : 212,393.26 = 96,547.31 : x - Step 2: Convert to fraction form
153,905.57/212,393.26 = 96,547.31/x - Step 3: Cross multiply
153,905.57x = 212,393.26 × 96,547.31 - Step 4: Simplify right side
153,905.57x = 20,505,997,384.15 - Step 5: Solve for x
x = 20,505,997,384.15/153,905.57 - Step 6: Final answer
x = 133,237.52
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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.