Finding the Fourth Proportional to 130,954.28, 180,718.14 and 74,366.84
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Solution
The fourth proportional to 130,954.28, 180,718.14 and 74,366.84 is: 102,626.94
Step by Step Solution
- Step 1: Write the proportion equation
130,954.28 : 180,718.14 = 74,366.84 : x - Step 2: Convert to fraction form
130,954.28/180,718.14 = 74,366.84/x - Step 3: Cross multiply
130,954.28x = 180,718.14 × 74,366.84 - Step 4: Simplify right side
130,954.28x = 13,439,437,002.48 - Step 5: Solve for x
x = 13,439,437,002.48/130,954.28 - Step 6: Final answer
x = 102,626.94
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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.