Finding the Fourth Proportional to 114,346.05, 157,874.57 and 71,390.94
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Solution
The fourth proportional to 114,346.05, 157,874.57 and 71,390.94 is: 98,567.58
Step by Step Solution
- Step 1: Write the proportion equation
114,346.05 : 157,874.57 = 71,390.94 : x - Step 2: Convert to fraction form
114,346.05/157,874.57 = 71,390.94/x - Step 3: Cross multiply
114,346.05x = 157,874.57 × 71,390.94 - Step 4: Simplify right side
114,346.05x = 11,270,813,273.13 - Step 5: Solve for x
x = 11,270,813,273.13/114,346.05 - Step 6: Final answer
x = 98,567.58
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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.