Finding the Fourth Proportional to 135,488.74, 203,600.80 and 72,352.78
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Solution
The fourth proportional to 135,488.74, 203,600.80 and 72,352.78 is: 108,725.52
Step by Step Solution
- Step 1: Write the proportion equation
135,488.74 : 203,600.80 = 72,352.78 : x - Step 2: Convert to fraction form
135,488.74/203,600.80 = 72,352.78/x - Step 3: Cross multiply
135,488.74x = 203,600.80 × 72,352.78 - Step 4: Simplify right side
135,488.74x = 14,731,083,890.22 - Step 5: Solve for x
x = 14,731,083,890.22/135,488.74 - Step 6: Final answer
x = 108,725.52
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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.