Finding the Fourth Proportional to 92,177.19, 138,137.18 and 69,669.31
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Solution
The fourth proportional to 92,177.19, 138,137.18 and 69,669.31 is: 104,406.76
Step by Step Solution
- Step 1: Write the proportion equation
92,177.19 : 138,137.18 = 69,669.31 : x - Step 2: Convert to fraction form
92,177.19/138,137.18 = 69,669.31/x - Step 3: Cross multiply
92,177.19x = 138,137.18 × 69,669.31 - Step 4: Simplify right side
92,177.19x = 9,623,922,015.95 - Step 5: Solve for x
x = 9,623,922,015.95/92,177.19 - Step 6: Final answer
x = 104,406.76
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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.