Finding the Fourth Proportional to 125,862.10, 188,793.15 and 121,023.70
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Solution
The fourth proportional to 125,862.10, 188,793.15 and 121,023.70 is: 181,535.55
Step by Step Solution
- Step 1: Write the proportion equation
125,862.10 : 188,793.15 = 121,023.70 : x - Step 2: Convert to fraction form
125,862.10/188,793.15 = 121,023.70/x - Step 3: Cross multiply
125,862.10x = 188,793.15 × 121,023.70 - Step 4: Simplify right side
125,862.10x = 22,848,445,547.66 - Step 5: Solve for x
x = 22,848,445,547.66/125,862.10 - Step 6: Final answer
x = 181,535.55
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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.