Finding the Fourth Proportional to 126,922.05, 175,154.68 and 69,557.55
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Solution
The fourth proportional to 126,922.05, 175,154.68 and 69,557.55 is: 95,990.65
Step by Step Solution
- Step 1: Write the proportion equation
126,922.05 : 175,154.68 = 69,557.55 : x - Step 2: Convert to fraction form
126,922.05/175,154.68 = 69,557.55/x - Step 3: Cross multiply
126,922.05x = 175,154.68 × 69,557.55 - Step 4: Simplify right side
126,922.05x = 12,183,330,411.83 - Step 5: Solve for x
x = 12,183,330,411.83/126,922.05 - Step 6: Final answer
x = 95,990.65
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1.5x scale
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.