Finding the Fourth Proportional to 101,557.62, 140,147.80 and 56,234.63
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Solution
The fourth proportional to 101,557.62, 140,147.80 and 56,234.63 is: 77,602.84
Step by Step Solution
- Step 1: Write the proportion equation
101,557.62 : 140,147.80 = 56,234.63 : x - Step 2: Convert to fraction form
101,557.62/140,147.80 = 56,234.63/x - Step 3: Cross multiply
101,557.62x = 140,147.80 × 56,234.63 - Step 4: Simplify right side
101,557.62x = 7,881,159,678.31 - Step 5: Solve for x
x = 7,881,159,678.31/101,557.62 - Step 6: Final answer
x = 77,602.84
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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.