Finding the Fourth Proportional to 146,781.60, 202,542.57 and 86,371.80
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Solution
The fourth proportional to 146,781.60, 202,542.57 and 86,371.80 is: 119,183.65
Step by Step Solution
- Step 1: Write the proportion equation
146,781.60 : 202,542.57 = 86,371.80 : x - Step 2: Convert to fraction form
146,781.60/202,542.57 = 86,371.80/x - Step 3: Cross multiply
146,781.60x = 202,542.57 × 86,371.80 - Step 4: Simplify right side
146,781.60x = 17,493,966,347.53 - Step 5: Solve for x
x = 17,493,966,347.53/146,781.60 - Step 6: Final answer
x = 119,183.65
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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.