Finding the Fourth Proportional to 101,089.12, 139,501.44 and 58,654.96
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Solution
The fourth proportional to 101,089.12, 139,501.44 and 58,654.96 is: 80,942.95
Step by Step Solution
- Step 1: Write the proportion equation
101,089.12 : 139,501.44 = 58,654.96 : x - Step 2: Convert to fraction form
101,089.12/139,501.44 = 58,654.96/x - Step 3: Cross multiply
101,089.12x = 139,501.44 × 58,654.96 - Step 4: Simplify right side
101,089.12x = 8,182,451,383.14 - Step 5: Solve for x
x = 8,182,451,383.14/101,089.12 - Step 6: Final answer
x = 80,942.95
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1.5x scale
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.