Finding the Fourth Proportional to 121,043.16, 181,462.68 and 57,827.52
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Solution
The fourth proportional to 121,043.16, 181,462.68 and 57,827.52 is: 86,692.52
Step by Step Solution
- Step 1: Write the proportion equation
121,043.16 : 181,462.68 = 57,827.52 : x - Step 2: Convert to fraction form
121,043.16/181,462.68 = 57,827.52/x - Step 3: Cross multiply
121,043.16x = 181,462.68 × 57,827.52 - Step 4: Simplify right side
121,043.16x = 10,493,536,756.95 - Step 5: Solve for x
x = 10,493,536,756.95/121,043.16 - Step 6: Final answer
x = 86,692.52
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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.