Finding the Fourth Proportional to 141,937.91, 195,867.71 and 81,465.99
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Solution
The fourth proportional to 141,937.91, 195,867.71 and 81,465.99 is: 112,419.27
Step by Step Solution
- Step 1: Write the proportion equation
141,937.91 : 195,867.71 = 81,465.99 : x - Step 2: Convert to fraction form
141,937.91/195,867.71 = 81,465.99/x - Step 3: Cross multiply
141,937.91x = 195,867.71 × 81,465.99 - Step 4: Simplify right side
141,937.91x = 15,956,555,924.84 - Step 5: Solve for x
x = 15,956,555,924.84/141,937.91 - Step 6: Final answer
x = 112,419.27
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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.