Finding the Fourth Proportional to 146,579.88, 202,285.20 and 86,149.65
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Solution
The fourth proportional to 146,579.88, 202,285.20 and 86,149.65 is: 118,889.44
Step by Step Solution
- Step 1: Write the proportion equation
146,579.88 : 202,285.20 = 86,149.65 : x - Step 2: Convert to fraction form
146,579.88/202,285.20 = 86,149.65/x - Step 3: Cross multiply
146,579.88x = 202,285.20 × 86,149.65 - Step 4: Simplify right side
146,579.88x = 17,426,799,180.18 - Step 5: Solve for x
x = 17,426,799,180.18/146,579.88 - Step 6: Final answer
x = 118,889.44
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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.