Finding the Fourth Proportional to 116,730.74, 162,175.93 and 115,331.06
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Solution
The fourth proportional to 116,730.74, 162,175.93 and 115,331.06 is: 160,231.33
Step by Step Solution
- Step 1: Write the proportion equation
116,730.74 : 162,175.93 = 115,331.06 : x - Step 2: Convert to fraction form
116,730.74/162,175.93 = 115,331.06/x - Step 3: Cross multiply
116,730.74x = 162,175.93 × 115,331.06 - Step 4: Simplify right side
116,730.74x = 18,703,921,246.67 - Step 5: Solve for x
x = 18,703,921,246.67/116,730.74 - Step 6: Final answer
x = 160,231.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.