Finding the Fourth Proportional to 107,203.87, 148,115.10 and 91,239.88
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Solution
The fourth proportional to 107,203.87, 148,115.10 and 91,239.88 is: 126,058.92
Step by Step Solution
- Step 1: Write the proportion equation
107,203.87 : 148,115.10 = 91,239.88 : x - Step 2: Convert to fraction form
107,203.87/148,115.10 = 91,239.88/x - Step 3: Cross multiply
107,203.87x = 148,115.10 × 91,239.88 - Step 4: Simplify right side
107,203.87x = 13,514,003,686.54 - Step 5: Solve for x
x = 13,514,003,686.54/107,203.87 - Step 6: Final answer
x = 126,058.92
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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.