Finding the Fourth Proportional to 127,781.12, 191,671.68 and 44,698.88
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Solution
The fourth proportional to 127,781.12, 191,671.68 and 44,698.88 is: 67,048.32
Step by Step Solution
- Step 1: Write the proportion equation
127,781.12 : 191,671.68 = 44,698.88 : x - Step 2: Convert to fraction form
127,781.12/191,671.68 = 44,698.88/x - Step 3: Cross multiply
127,781.12x = 191,671.68 × 44,698.88 - Step 4: Simplify right side
127,781.12x = 8,567,509,423.72 - Step 5: Solve for x
x = 8,567,509,423.72/127,781.12 - Step 6: Final answer
x = 67,048.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.