Finding the Fourth Proportional to 159,421.04, 220,010.99 and 87,801.05
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Solution
The fourth proportional to 159,421.04, 220,010.99 and 87,801.05 is: 121,170.92
Step by Step Solution
- Step 1: Write the proportion equation
159,421.04 : 220,010.99 = 87,801.05 : x - Step 2: Convert to fraction form
159,421.04/220,010.99 = 87,801.05/x - Step 3: Cross multiply
159,421.04x = 220,010.99 × 87,801.05 - Step 4: Simplify right side
159,421.04x = 19,317,194,394.48 - Step 5: Solve for x
x = 19,317,194,394.48/159,421.04 - Step 6: Final answer
x = 121,170.92
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1.5x scale
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.