Finding the Fourth Proportional to 135,513.84, 203,395.68 and 69,001.92
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Solution
The fourth proportional to 135,513.84, 203,395.68 and 69,001.92 is: 103,566.49
Step by Step Solution
- Step 1: Write the proportion equation
135,513.84 : 203,395.68 = 69,001.92 : x - Step 2: Convert to fraction form
135,513.84/203,395.68 = 69,001.92/x - Step 3: Cross multiply
135,513.84x = 203,395.68 × 69,001.92 - Step 4: Simplify right side
135,513.84x = 14,034,692,439.71 - Step 5: Solve for x
x = 14,034,692,439.71/135,513.84 - Step 6: Final answer
x = 103,566.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.