Finding the Fourth Proportional to 98,728.08, 136,244.36 and 53,406.08
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Solution
The fourth proportional to 98,728.08, 136,244.36 and 53,406.08 is: 73,700.18
Step by Step Solution
- Step 1: Write the proportion equation
98,728.08 : 136,244.36 = 53,406.08 : x - Step 2: Convert to fraction form
98,728.08/136,244.36 = 53,406.08/x - Step 3: Cross multiply
98,728.08x = 136,244.36 × 53,406.08 - Step 4: Simplify right side
98,728.08x = 7,276,277,189.71 - Step 5: Solve for x
x = 7,276,277,189.71/98,728.08 - Step 6: Final answer
x = 73,700.18
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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.