Finding the Fourth Proportional to 135,938.81, 187,595.49 and 75,515.08
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Solution
The fourth proportional to 135,938.81, 187,595.49 and 75,515.08 is: 104,210.77
Step by Step Solution
- Step 1: Write the proportion equation
135,938.81 : 187,595.49 = 75,515.08 : x - Step 2: Convert to fraction form
135,938.81/187,595.49 = 75,515.08/x - Step 3: Cross multiply
135,938.81x = 187,595.49 × 75,515.08 - Step 4: Simplify right side
135,938.81x = 14,166,288,057.41 - Step 5: Solve for x
x = 14,166,288,057.41/135,938.81 - Step 6: Final answer
x = 104,210.77
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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.