Finding the Fourth Proportional to 159,197.58, 219,688.06 and 87,577.62
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Solution
The fourth proportional to 159,197.58, 219,688.06 and 87,577.62 is: 120,854.58
Step by Step Solution
- Step 1: Write the proportion equation
159,197.58 : 219,688.06 = 87,577.62 : x - Step 2: Convert to fraction form
159,197.58/219,688.06 = 87,577.62/x - Step 3: Cross multiply
159,197.58x = 219,688.06 × 87,577.62 - Step 4: Simplify right side
159,197.58x = 19,239,757,437.22 - Step 5: Solve for x
x = 19,239,757,437.22/159,197.58 - Step 6: Final answer
x = 120,854.58
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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.