Finding the Fourth Proportional to 98,318.17, 135,690.60 and 55,883.08
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Solution
The fourth proportional to 98,318.17, 135,690.60 and 55,883.08 is: 77,125.20
Step by Step Solution
- Step 1: Write the proportion equation
98,318.17 : 135,690.60 = 55,883.08 : x - Step 2: Convert to fraction form
98,318.17/135,690.60 = 55,883.08/x - Step 3: Cross multiply
98,318.17x = 135,690.60 × 55,883.08 - Step 4: Simplify right side
98,318.17x = 7,582,808,655.05 - Step 5: Solve for x
x = 7,582,808,655.05/98,318.17 - Step 6: Final answer
x = 77,125.20
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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.