Finding the Fourth Proportional to 97,143.80, 134,060.69 and 54,126.14
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Solution
The fourth proportional to 97,143.80, 134,060.69 and 54,126.14 is: 74,695.32
Step by Step Solution
- Step 1: Write the proportion equation
97,143.80 : 134,060.69 = 54,126.14 : x - Step 2: Convert to fraction form
97,143.80/134,060.69 = 54,126.14/x - Step 3: Cross multiply
97,143.80x = 134,060.69 × 54,126.14 - Step 4: Simplify right side
97,143.80x = 7,256,187,675.44 - Step 5: Solve for x
x = 7,256,187,675.44/97,143.80 - Step 6: Final answer
x = 74,695.32
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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.