Finding the Fourth Proportional to 99,108.92, 136,771.98 and 56,667.80
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Solution
The fourth proportional to 99,108.92, 136,771.98 and 56,667.80 is: 78,202.52
Step by Step Solution
- Step 1: Write the proportion equation
99,108.92 : 136,771.98 = 56,667.80 : x - Step 2: Convert to fraction form
99,108.92/136,771.98 = 56,667.80/x - Step 3: Cross multiply
99,108.92x = 136,771.98 × 56,667.80 - Step 4: Simplify right side
99,108.92x = 7,750,567,208.24 - Step 5: Solve for x
x = 7,750,567,208.24/99,108.92 - Step 6: Final answer
x = 78,202.52
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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.