Finding the Fourth Proportional to 130,955.24, 180,720.78 and 74,366.84
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Solution
The fourth proportional to 130,955.24, 180,720.78 and 74,366.84 is: 102,627.69
Step by Step Solution
- Step 1: Write the proportion equation
130,955.24 : 180,720.78 = 74,366.84 : x - Step 2: Convert to fraction form
130,955.24/180,720.78 = 74,366.84/x - Step 3: Cross multiply
130,955.24x = 180,720.78 × 74,366.84 - Step 4: Simplify right side
130,955.24x = 13,439,633,330.94 - Step 5: Solve for x
x = 13,439,633,330.94/130,955.24 - Step 6: Final answer
x = 102,627.69
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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.