Finding the Fourth Proportional to 157,163.52, 216,963.36 and 107,124.96
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Solution
The fourth proportional to 157,163.52, 216,963.36 and 107,124.96 is: 147,885.41
Step by Step Solution
- Step 1: Write the proportion equation
157,163.52 : 216,963.36 = 107,124.96 : x - Step 2: Convert to fraction form
157,163.52/216,963.36 = 107,124.96/x - Step 3: Cross multiply
157,163.52x = 216,963.36 × 107,124.96 - Step 4: Simplify right side
157,163.52x = 23,242,191,261.47 - Step 5: Solve for x
x = 23,242,191,261.47/157,163.52 - Step 6: Final answer
x = 147,885.41
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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.