Finding the Fourth Proportional to 159,335.41, 219,889.14 and 87,722.10
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Solution
The fourth proportional to 159,335.41, 219,889.14 and 87,722.10 is: 121,059.95
Step by Step Solution
- Step 1: Write the proportion equation
159,335.41 : 219,889.14 = 87,722.10 : x - Step 2: Convert to fraction form
159,335.41/219,889.14 = 87,722.10/x - Step 3: Cross multiply
159,335.41x = 219,889.14 × 87,722.10 - Step 4: Simplify right side
159,335.41x = 19,289,137,127.99 - Step 5: Solve for x
x = 19,289,137,127.99/159,335.41 - Step 6: Final answer
x = 121,059.95
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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.