Finding the Fourth Proportional to 158,817.42, 219,168.48 and 87,202.08
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Solution
The fourth proportional to 158,817.42, 219,168.48 and 87,202.08 is: 120,339.11
Step by Step Solution
- Step 1: Write the proportion equation
158,817.42 : 219,168.48 = 87,202.08 : x - Step 2: Convert to fraction form
158,817.42/219,168.48 = 87,202.08/x - Step 3: Cross multiply
158,817.42x = 219,168.48 × 87,202.08 - Step 4: Simplify right side
158,817.42x = 19,111,947,326.44 - Step 5: Solve for x
x = 19,111,947,326.44/158,817.42 - Step 6: Final answer
x = 120,339.11
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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.