Finding the Fourth Proportional to 140,773.24, 194,267.12 and 77,112.08
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Solution
The fourth proportional to 140,773.24, 194,267.12 and 77,112.08 is: 106,414.70
Step by Step Solution
- Step 1: Write the proportion equation
140,773.24 : 194,267.12 = 77,112.08 : x - Step 2: Convert to fraction form
140,773.24/194,267.12 = 77,112.08/x - Step 3: Cross multiply
140,773.24x = 194,267.12 × 77,112.08 - Step 4: Simplify right side
140,773.24x = 14,980,341,698.81 - Step 5: Solve for x
x = 14,980,341,698.81/140,773.24 - Step 6: Final answer
x = 106,414.70
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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.