Finding the Fourth Proportional to 100,930.08, 139,273.07 and 62,161.73
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Solution
The fourth proportional to 100,930.08, 139,273.07 and 62,161.73 is: 85,776.75
Step by Step Solution
- Step 1: Write the proportion equation
100,930.08 : 139,273.07 = 62,161.73 : x - Step 2: Convert to fraction form
100,930.08/139,273.07 = 62,161.73/x - Step 3: Cross multiply
100,930.08x = 139,273.07 × 62,161.73 - Step 4: Simplify right side
100,930.08x = 8,657,454,277.25 - Step 5: Solve for x
x = 8,657,454,277.25/100,930.08 - Step 6: Final answer
x = 85,776.75
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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.