Finding the Fourth Proportional to 141,562.86, 195,351.85 and 77,894.70
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Solution
The fourth proportional to 141,562.86, 195,351.85 and 77,894.70 is: 107,491.99
Step by Step Solution
- Step 1: Write the proportion equation
141,562.86 : 195,351.85 = 77,894.70 : x - Step 2: Convert to fraction form
141,562.86/195,351.85 = 77,894.70/x - Step 3: Cross multiply
141,562.86x = 195,351.85 × 77,894.70 - Step 4: Simplify right side
141,562.86x = 15,216,873,750.20 - Step 5: Solve for x
x = 15,216,873,750.20/141,562.86 - Step 6: Final answer
x = 107,491.99
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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.