Finding the Fourth Proportional to 135,708.39, 187,280.58 and 75,277.07
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Solution
The fourth proportional to 135,708.39, 187,280.58 and 75,277.07 is: 103,884.02
Step by Step Solution
- Step 1: Write the proportion equation
135,708.39 : 187,280.58 = 75,277.07 : x - Step 2: Convert to fraction form
135,708.39/187,280.58 = 75,277.07/x - Step 3: Cross multiply
135,708.39x = 187,280.58 × 75,277.07 - Step 4: Simplify right side
135,708.39x = 14,097,933,330.30 - Step 5: Solve for x
x = 14,097,933,330.30/135,708.39 - Step 6: Final answer
x = 103,884.02
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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.