Finding the Fourth Proportional to 135,938.10, 203,907.15 and 93,947.70
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Solution
The fourth proportional to 135,938.10, 203,907.15 and 93,947.70 is: 140,921.55
Step by Step Solution
- Step 1: Write the proportion equation
135,938.10 : 203,907.15 = 93,947.70 : x - Step 2: Convert to fraction form
135,938.10/203,907.15 = 93,947.70/x - Step 3: Cross multiply
135,938.10x = 203,907.15 × 93,947.70 - Step 4: Simplify right side
135,938.10x = 19,156,607,756.06 - Step 5: Solve for x
x = 19,156,607,756.06/135,938.10 - Step 6: Final answer
x = 140,921.55
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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.