Finding the Fourth Proportional to 149,256.92, 223,652.10 and 86,115.80
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Solution
The fourth proportional to 149,256.92, 223,652.10 and 86,115.80 is: 129,039.11
Step by Step Solution
- Step 1: Write the proportion equation
149,256.92 : 223,652.10 = 86,115.80 : x - Step 2: Convert to fraction form
149,256.92/223,652.10 = 86,115.80/x - Step 3: Cross multiply
149,256.92x = 223,652.10 × 86,115.80 - Step 4: Simplify right side
149,256.92x = 19,259,980,395.24 - Step 5: Solve for x
x = 19,259,980,395.24/149,256.92 - Step 6: Final answer
x = 129,039.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.