Finding the Fourth Proportional to 125,873.60, 188,810.40 and 121,035.20
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Solution
The fourth proportional to 125,873.60, 188,810.40 and 121,035.20 is: 181,552.80
Step by Step Solution
- Step 1: Write the proportion equation
125,873.60 : 188,810.40 = 121,035.20 : x - Step 2: Convert to fraction form
125,873.60/188,810.40 = 121,035.20/x - Step 3: Cross multiply
125,873.60x = 188,810.40 × 121,035.20 - Step 4: Simplify right side
125,873.60x = 22,852,704,526.08 - Step 5: Solve for x
x = 22,852,704,526.08/125,873.60 - Step 6: Final answer
x = 181,552.80
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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.