Finding the Fourth Proportional to 130,115.10, 179,487.10 and 89,850.00
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Solution
The fourth proportional to 130,115.10, 179,487.10 and 89,850.00 is: 123,943.46
Step by Step Solution
- Step 1: Write the proportion equation
130,115.10 : 179,487.10 = 89,850.00 : x - Step 2: Convert to fraction form
130,115.10/179,487.10 = 89,850.00/x - Step 3: Cross multiply
130,115.10x = 179,487.10 × 89,850.00 - Step 4: Simplify right side
130,115.10x = 16,126,914,588.31 - Step 5: Solve for x
x = 16,126,914,588.31/130,115.10 - Step 6: Final answer
x = 123,943.46
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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.