Finding the Fourth Proportional to 141,177.69, 194,828.36 and 77,515.74
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Solution
The fourth proportional to 141,177.69, 194,828.36 and 77,515.74 is: 106,973.45
Step by Step Solution
- Step 1: Write the proportion equation
141,177.69 : 194,828.36 = 77,515.74 : x - Step 2: Convert to fraction form
141,177.69/194,828.36 = 77,515.74/x - Step 3: Cross multiply
141,177.69x = 194,828.36 × 77,515.74 - Step 4: Simplify right side
141,177.69x = 15,102,264,110.81 - Step 5: Solve for x
x = 15,102,264,110.81/141,177.69 - Step 6: Final answer
x = 106,973.45
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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.