Finding the Fourth Proportional to 130,937.28, 180,694.68 and 74,349.84
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Solution
The fourth proportional to 130,937.28, 180,694.68 and 74,349.84 is: 102,603.48
Step by Step Solution
- Step 1: Write the proportion equation
130,937.28 : 180,694.68 = 74,349.84 : x - Step 2: Convert to fraction form
130,937.28/180,694.68 = 74,349.84/x - Step 3: Cross multiply
130,937.28x = 180,694.68 × 74,349.84 - Step 4: Simplify right side
130,937.28x = 13,434,620,546.85 - Step 5: Solve for x
x = 13,434,620,546.85/130,937.28 - Step 6: Final answer
x = 102,603.48
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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.