Finding the Fourth Proportional to 99,120.08, 136,786.74 and 53,798.48
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Solution
The fourth proportional to 99,120.08, 136,786.74 and 53,798.48 is: 74,242.46
Step by Step Solution
- Step 1: Write the proportion equation
99,120.08 : 136,786.74 = 53,798.48 : x - Step 2: Convert to fraction form
99,120.08/136,786.74 = 53,798.48/x - Step 3: Cross multiply
99,120.08x = 136,786.74 × 53,798.48 - Step 4: Simplify right side
99,120.08x = 7,358,918,696.16 - Step 5: Solve for x
x = 7,358,918,696.16/99,120.08 - Step 6: Final answer
x = 74,242.46
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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.