Finding the Fourth Proportional to 151,730.51, 209,486.72 and 135,787.55
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Solution
The fourth proportional to 151,730.51, 209,486.72 and 135,787.55 is: 187,475.07
Step by Step Solution
- Step 1: Write the proportion equation
151,730.51 : 209,486.72 = 135,787.55 : x - Step 2: Convert to fraction form
151,730.51/209,486.72 = 135,787.55/x - Step 3: Cross multiply
151,730.51x = 209,486.72 × 135,787.55 - Step 4: Simplify right side
151,730.51x = 28,445,687,758.37 - Step 5: Solve for x
x = 28,445,687,758.37/151,730.51 - Step 6: Final answer
x = 187,475.07
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1.5x scale
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.