Finding the Fourth Proportional to 159,418.05, 219,995.35 and 87,796.63
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Solution
The fourth proportional to 159,418.05, 219,995.35 and 87,796.63 is: 121,158.49
Step by Step Solution
- Step 1: Write the proportion equation
159,418.05 : 219,995.35 = 87,796.63 : x - Step 2: Convert to fraction form
159,418.05/219,995.35 = 87,796.63/x - Step 3: Cross multiply
159,418.05x = 219,995.35 × 87,796.63 - Step 4: Simplify right side
159,418.05x = 19,314,850,345.67 - Step 5: Solve for x
x = 19,314,850,345.67/159,418.05 - Step 6: Final answer
x = 121,158.49
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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.