Finding the Fourth Proportional to 125,998.12, 188,711.52 and 97,691.32
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Solution
The fourth proportional to 125,998.12, 188,711.52 and 97,691.32 is: 146,315.50
Step by Step Solution
- Step 1: Write the proportion equation
125,998.12 : 188,711.52 = 97,691.32 : x - Step 2: Convert to fraction form
125,998.12/188,711.52 = 97,691.32/x - Step 3: Cross multiply
125,998.12x = 188,711.52 × 97,691.32 - Step 4: Simplify right side
125,998.12x = 18,435,477,488.01 - Step 5: Solve for x
x = 18,435,477,488.01/125,998.12 - Step 6: Final answer
x = 146,315.50
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1.5x scale
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.