Finding the Fourth Proportional to 102,699.01, 141,727.52 and 57,381.99
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Solution
The fourth proportional to 102,699.01, 141,727.52 and 57,381.99 is: 79,188.76
Step by Step Solution
- Step 1: Write the proportion equation
102,699.01 : 141,727.52 = 57,381.99 : x - Step 2: Convert to fraction form
102,699.01/141,727.52 = 57,381.99/x - Step 3: Cross multiply
102,699.01x = 141,727.52 × 57,381.99 - Step 4: Simplify right side
102,699.01x = 8,132,607,135.36 - Step 5: Solve for x
x = 8,132,607,135.36/102,699.01 - Step 6: Final answer
x = 79,188.76
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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.