Finding the Fourth Proportional to 98,188.48, 135,476.58 and 57,899.08
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Solution
The fourth proportional to 98,188.48, 135,476.58 and 57,899.08 is: 79,886.86
Step by Step Solution
- Step 1: Write the proportion equation
98,188.48 : 135,476.58 = 57,899.08 : x - Step 2: Convert to fraction form
98,188.48/135,476.58 = 57,899.08/x - Step 3: Cross multiply
98,188.48x = 135,476.58 × 57,899.08 - Step 4: Simplify right side
98,188.48x = 7,843,969,343.55 - Step 5: Solve for x
x = 7,843,969,343.55/98,188.48 - Step 6: Final answer
x = 79,886.86
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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.