Finding the Fourth Proportional to 159,122.19, 219,590.24 and 87,502.74
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Solution
The fourth proportional to 159,122.19, 219,590.24 and 87,502.74 is: 120,754.67
Step by Step Solution
- Step 1: Write the proportion equation
159,122.19 : 219,590.24 = 87,502.74 : x - Step 2: Convert to fraction form
159,122.19/219,590.24 = 87,502.74/x - Step 3: Cross multiply
159,122.19x = 219,590.24 × 87,502.74 - Step 4: Simplify right side
159,122.19x = 19,214,747,239.74 - Step 5: Solve for x
x = 19,214,747,239.74/159,122.19 - Step 6: Final answer
x = 120,754.67
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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.