Finding the Fourth Proportional to 124,991.68, 172,489.08 and 68,402.92
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Solution
The fourth proportional to 124,991.68, 172,489.08 and 68,402.92 is: 94,396.34
Step by Step Solution
- Step 1: Write the proportion equation
124,991.68 : 172,489.08 = 68,402.92 : x - Step 2: Convert to fraction form
124,991.68/172,489.08 = 68,402.92/x - Step 3: Cross multiply
124,991.68x = 172,489.08 × 68,402.92 - Step 4: Simplify right side
124,991.68x = 11,798,756,740.11 - Step 5: Solve for x
x = 11,798,756,740.11/124,991.68 - Step 6: Final answer
x = 94,396.34
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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.