Finding the Fourth Proportional to 135,914.08, 187,555.14 and 75,488.68
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Solution
The fourth proportional to 135,914.08, 187,555.14 and 75,488.68 is: 104,170.88
Step by Step Solution
- Step 1: Write the proportion equation
135,914.08 : 187,555.14 = 75,488.68 : x - Step 2: Convert to fraction form
135,914.08/187,555.14 = 75,488.68/x - Step 3: Cross multiply
135,914.08x = 187,555.14 × 75,488.68 - Step 4: Simplify right side
135,914.08x = 14,158,289,945.82 - Step 5: Solve for x
x = 14,158,289,945.82/135,914.08 - Step 6: Final answer
x = 104,170.88
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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.