Finding the Fourth Proportional to 124,841.21, 187,309.08 and 74,956.14
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Solution
The fourth proportional to 124,841.21, 187,309.08 and 74,956.14 is: 112,462.59
Step by Step Solution
- Step 1: Write the proportion equation
124,841.21 : 187,309.08 = 74,956.14 : x - Step 2: Convert to fraction form
124,841.21/187,309.08 = 74,956.14/x - Step 3: Cross multiply
124,841.21x = 187,309.08 × 74,956.14 - Step 4: Simplify right side
124,841.21x = 14,039,965,623.75 - Step 5: Solve for x
x = 14,039,965,623.75/124,841.21 - Step 6: Final answer
x = 112,462.59
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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.