Finding the Fourth Proportional to 121,258.80, 181,888.20 and 116,593.20
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Solution
The fourth proportional to 121,258.80, 181,888.20 and 116,593.20 is: 174,889.80
Step by Step Solution
- Step 1: Write the proportion equation
121,258.80 : 181,888.20 = 116,593.20 : x - Step 2: Convert to fraction form
121,258.80/181,888.20 = 116,593.20/x - Step 3: Cross multiply
121,258.80x = 181,888.20 × 116,593.20 - Step 4: Simplify right side
121,258.80x = 21,206,927,280.24 - Step 5: Solve for x
x = 21,206,927,280.24/121,258.80 - Step 6: Final answer
x = 174,889.80
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1.5x scale
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.