Finding the Fourth Proportional to 101,486.21, 140,048.07 and 56,166.08
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Solution
The fourth proportional to 101,486.21, 140,048.07 and 56,166.08 is: 77,507.59
Step by Step Solution
- Step 1: Write the proportion equation
101,486.21 : 140,048.07 = 56,166.08 : x - Step 2: Convert to fraction form
101,486.21/140,048.07 = 56,166.08/x - Step 3: Cross multiply
101,486.21x = 140,048.07 × 56,166.08 - Step 4: Simplify right side
101,486.21x = 7,865,951,103.47 - Step 5: Solve for x
x = 7,865,951,103.47/101,486.21 - Step 6: Final answer
x = 77,507.59
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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.