Finding the Fourth Proportional to 152,067.24, 209,800.80 and 91,615.05
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Solution
The fourth proportional to 152,067.24, 209,800.80 and 91,615.05 is: 126,397.45
Step by Step Solution
- Step 1: Write the proportion equation
152,067.24 : 209,800.80 = 91,615.05 : x - Step 2: Convert to fraction form
152,067.24/209,800.80 = 91,615.05/x - Step 3: Cross multiply
152,067.24x = 209,800.80 × 91,615.05 - Step 4: Simplify right side
152,067.24x = 19,220,910,782.04 - Step 5: Solve for x
x = 19,220,910,782.04/152,067.24 - Step 6: Final answer
x = 126,397.45
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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.