Finding the Fourth Proportional to 121,347.53, 181,981.68 and 40,272.78
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Solution
The fourth proportional to 121,347.53, 181,981.68 and 40,272.78 is: 60,396.02
Step by Step Solution
- Step 1: Write the proportion equation
121,347.53 : 181,981.68 = 40,272.78 : x - Step 2: Convert to fraction form
121,347.53/181,981.68 = 40,272.78/x - Step 3: Cross multiply
121,347.53x = 181,981.68 × 40,272.78 - Step 4: Simplify right side
121,347.53x = 7,328,908,162.67 - Step 5: Solve for x
x = 7,328,908,162.67/121,347.53 - Step 6: Final answer
x = 60,396.02
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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.