Finding the Fourth Proportional to 97,847.60, 135,097.08 and 72,359.60
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Solution
The fourth proportional to 97,847.60, 135,097.08 and 72,359.60 is: 99,906.09
Step by Step Solution
- Step 1: Write the proportion equation
97,847.60 : 135,097.08 = 72,359.60 : x - Step 2: Convert to fraction form
97,847.60/135,097.08 = 72,359.60/x - Step 3: Cross multiply
97,847.60x = 135,097.08 × 72,359.60 - Step 4: Simplify right side
97,847.60x = 9,775,570,669.97 - Step 5: Solve for x
x = 9,775,570,669.97/97,847.60 - Step 6: Final answer
x = 99,906.09
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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.