Finding the Fourth Proportional to 98,997.08, 136,616.10 and 54,285.08
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Solution
The fourth proportional to 98,997.08, 136,616.10 and 54,285.08 is: 74,913.48
Step by Step Solution
- Step 1: Write the proportion equation
98,997.08 : 136,616.10 = 54,285.08 : x - Step 2: Convert to fraction form
98,997.08/136,616.10 = 54,285.08/x - Step 3: Cross multiply
98,997.08x = 136,616.10 × 54,285.08 - Step 4: Simplify right side
98,997.08x = 7,416,215,917.79 - Step 5: Solve for x
x = 7,416,215,917.79/98,997.08 - Step 6: Final answer
x = 74,913.48
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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.