Finding the Fourth Proportional to 159,107.58, 219,567.78 and 87,491.43
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Solution
The fourth proportional to 159,107.58, 219,567.78 and 87,491.43 is: 120,737.80
Step by Step Solution
- Step 1: Write the proportion equation
159,107.58 : 219,567.78 = 87,491.43 : x - Step 2: Convert to fraction form
159,107.58/219,567.78 = 87,491.43/x - Step 3: Cross multiply
159,107.58x = 219,567.78 × 87,491.43 - Step 4: Simplify right side
159,107.58x = 19,210,299,054.13 - Step 5: Solve for x
x = 19,210,299,054.13/159,107.58 - Step 6: Final answer
x = 120,737.80
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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.