Finding the Fourth Proportional to 163,115.34, 225,543.18 and 142,120.14
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Solution
The fourth proportional to 163,115.34, 225,543.18 and 142,120.14 is: 196,512.65
Step by Step Solution
- Step 1: Write the proportion equation
163,115.34 : 225,543.18 = 142,120.14 : x - Step 2: Convert to fraction form
163,115.34/225,543.18 = 142,120.14/x - Step 3: Cross multiply
163,115.34x = 225,543.18 × 142,120.14 - Step 4: Simplify right side
163,115.34x = 32,054,228,317.65 - Step 5: Solve for x
x = 32,054,228,317.65/163,115.34 - Step 6: Final answer
x = 196,512.65
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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.