Finding the Fourth Proportional to 159,009.24, 219,438.52 and 87,394.70
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Solution
The fourth proportional to 159,009.24, 219,438.52 and 87,394.70 is: 120,607.86
Step by Step Solution
- Step 1: Write the proportion equation
159,009.24 : 219,438.52 = 87,394.70 : x - Step 2: Convert to fraction form
159,009.24/219,438.52 = 87,394.70/x - Step 3: Cross multiply
159,009.24x = 219,438.52 × 87,394.70 - Step 4: Simplify right side
159,009.24x = 19,177,763,623.84 - Step 5: Solve for x
x = 19,177,763,623.84/159,009.24 - Step 6: Final answer
x = 120,607.86
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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.