Finding the Fourth Proportional to 121,269.30, 181,903.95 and 102,023.70
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Solution
The fourth proportional to 121,269.30, 181,903.95 and 102,023.70 is: 153,035.55
Step by Step Solution
- Step 1: Write the proportion equation
121,269.30 : 181,903.95 = 102,023.70 : x - Step 2: Convert to fraction form
121,269.30/181,903.95 = 102,023.70/x - Step 3: Cross multiply
121,269.30x = 181,903.95 × 102,023.70 - Step 4: Simplify right side
121,269.30x = 18,558,514,023.62 - Step 5: Solve for x
x = 18,558,514,023.62/121,269.30 - Step 6: Final answer
x = 153,035.55
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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.