Finding the Fourth Proportional to 159,963.21, 220,746.47 and 88,344.09
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Solution
The fourth proportional to 159,963.21, 220,746.47 and 88,344.09 is: 121,913.32
Step by Step Solution
- Step 1: Write the proportion equation
159,963.21 : 220,746.47 = 88,344.09 : x - Step 2: Convert to fraction form
159,963.21/220,746.47 = 88,344.09/x - Step 3: Cross multiply
159,963.21x = 220,746.47 × 88,344.09 - Step 4: Simplify right side
159,963.21x = 19,501,645,571.14 - Step 5: Solve for x
x = 19,501,645,571.14/159,963.21 - Step 6: Final answer
x = 121,913.32
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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.