Finding the Fourth Proportional to 104,881.26, 157,261.14 and 71,641.50
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Solution
The fourth proportional to 104,881.26, 157,261.14 and 71,641.50 is: 107,420.75
Step by Step Solution
- Step 1: Write the proportion equation
104,881.26 : 157,261.14 = 71,641.50 : x - Step 2: Convert to fraction form
104,881.26/157,261.14 = 71,641.50/x - Step 3: Cross multiply
104,881.26x = 157,261.14 × 71,641.50 - Step 4: Simplify right side
104,881.26x = 11,266,423,961.31 - Step 5: Solve for x
x = 11,266,423,961.31/104,881.26 - Step 6: Final answer
x = 107,420.75
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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.