Finding the Fourth Proportional to 135,673.70, 187,241.21 and 75,263.81
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Solution
The fourth proportional to 135,673.70, 187,241.21 and 75,263.81 is: 103,870.43
Step by Step Solution
- Step 1: Write the proportion equation
135,673.70 : 187,241.21 = 75,263.81 : x - Step 2: Convert to fraction form
135,673.70/187,241.21 = 75,263.81/x - Step 3: Cross multiply
135,673.70x = 187,241.21 × 75,263.81 - Step 4: Simplify right side
135,673.70x = 14,092,485,541.09 - Step 5: Solve for x
x = 14,092,485,541.09/135,673.70 - Step 6: Final answer
x = 103,870.43
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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.