Finding the Fourth Proportional to 130,956.24, 180,722.16 and 74,367.84
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Solution
The fourth proportional to 130,956.24, 180,722.16 and 74,367.84 is: 102,629.07
Step by Step Solution
- Step 1: Write the proportion equation
130,956.24 : 180,722.16 = 74,367.84 : x - Step 2: Convert to fraction form
130,956.24/180,722.16 = 74,367.84/x - Step 3: Cross multiply
130,956.24x = 180,722.16 × 74,367.84 - Step 4: Simplify right side
130,956.24x = 13,439,916,679.33 - Step 5: Solve for x
x = 13,439,916,679.33/130,956.24 - Step 6: Final answer
x = 102,629.07
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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.