Finding the Fourth Proportional to 193,385.99, 266,906.76 and 121,788.47
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Solution
The fourth proportional to 193,385.99, 266,906.76 and 121,788.47 is: 168,089.56
Step by Step Solution
- Step 1: Write the proportion equation
193,385.99 : 266,906.76 = 121,788.47 : x - Step 2: Convert to fraction form
193,385.99/266,906.76 = 121,788.47/x - Step 3: Cross multiply
193,385.99x = 266,906.76 × 121,788.47 - Step 4: Simplify right side
193,385.99x = 32,506,165,933.06 - Step 5: Solve for x
x = 32,506,165,933.06/193,385.99 - Step 6: Final answer
x = 168,089.56
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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.