Finding the Fourth Proportional to 88,137.21, 132,177.74 and 28,959.15
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Solution
The fourth proportional to 88,137.21, 132,177.74 and 28,959.15 is: 43,429.50
Step by Step Solution
- Step 1: Write the proportion equation
88,137.21 : 132,177.74 = 28,959.15 : x - Step 2: Convert to fraction form
88,137.21/132,177.74 = 28,959.15/x - Step 3: Cross multiply
88,137.21x = 132,177.74 × 28,959.15 - Step 4: Simplify right side
88,137.21x = 3,827,754,854.53 - Step 5: Solve for x
x = 3,827,754,854.53/88,137.21 - Step 6: Final answer
x = 43,429.50
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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.