Finding the Fourth Proportional to 159,149.78, 219,628.52 and 87,530.99
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Solution
The fourth proportional to 159,149.78, 219,628.52 and 87,530.99 is: 120,793.76
Step by Step Solution
- Step 1: Write the proportion equation
159,149.78 : 219,628.52 = 87,530.99 : x - Step 2: Convert to fraction form
159,149.78/219,628.52 = 87,530.99/x - Step 3: Cross multiply
159,149.78x = 219,628.52 × 87,530.99 - Step 4: Simplify right side
159,149.78x = 19,224,300,252.04 - Step 5: Solve for x
x = 19,224,300,252.04/159,149.78 - Step 6: Final answer
x = 120,793.76
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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.