Finding the Fourth Proportional to 170,730.92, 235,637.40 and 99,170.84
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Solution
The fourth proportional to 170,730.92, 235,637.40 and 99,170.84 is: 136,872.45
Step by Step Solution
- Step 1: Write the proportion equation
170,730.92 : 235,637.40 = 99,170.84 : x - Step 2: Convert to fraction form
170,730.92/235,637.40 = 99,170.84/x - Step 3: Cross multiply
170,730.92x = 235,637.40 × 99,170.84 - Step 4: Simplify right side
170,730.92x = 23,368,358,893.42 - Step 5: Solve for x
x = 23,368,358,893.42/170,730.92 - Step 6: Final answer
x = 136,872.45
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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.