Finding the Fourth Proportional to 125,909.10, 188,863.65 and 121,070.70
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Solution
The fourth proportional to 125,909.10, 188,863.65 and 121,070.70 is: 181,606.05
Step by Step Solution
- Step 1: Write the proportion equation
125,909.10 : 188,863.65 = 121,070.70 : x - Step 2: Convert to fraction form
125,909.10/188,863.65 = 121,070.70/x - Step 3: Cross multiply
125,909.10x = 188,863.65 × 121,070.70 - Step 4: Simplify right side
125,909.10x = 22,865,854,310.06 - Step 5: Solve for x
x = 22,865,854,310.06/125,909.10 - Step 6: Final answer
x = 181,606.05
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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.