Finding the Fourth Proportional to 124,913.44, 172,091.28 and 87,122.08
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Solution
The fourth proportional to 124,913.44, 172,091.28 and 87,122.08 is: 120,026.72
Step by Step Solution
- Step 1: Write the proportion equation
124,913.44 : 172,091.28 = 87,122.08 : x - Step 2: Convert to fraction form
124,913.44/172,091.28 = 87,122.08/x - Step 3: Cross multiply
124,913.44x = 172,091.28 × 87,122.08 - Step 4: Simplify right side
124,913.44x = 14,992,950,263.46 - Step 5: Solve for x
x = 14,992,950,263.46/124,913.44 - Step 6: Final answer
x = 120,026.72
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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.