Finding the Fourth Proportional to 98,530.98, 135,971.55 and 60,283.86
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Solution
The fourth proportional to 98,530.98, 135,971.55 and 60,283.86 is: 83,190.99
Step by Step Solution
- Step 1: Write the proportion equation
98,530.98 : 135,971.55 = 60,283.86 : x - Step 2: Convert to fraction form
98,530.98/135,971.55 = 60,283.86/x - Step 3: Cross multiply
98,530.98x = 135,971.55 × 60,283.86 - Step 4: Simplify right side
98,530.98x = 8,196,889,884.18 - Step 5: Solve for x
x = 8,196,889,884.18/98,530.98 - Step 6: Final answer
x = 83,190.99
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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.