Finding the Fourth Proportional to 130,880.18, 180,623.58 and 72,743.88
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Solution
The fourth proportional to 130,880.18, 180,623.58 and 72,743.88 is: 100,391.52
Step by Step Solution
- Step 1: Write the proportion equation
130,880.18 : 180,623.58 = 72,743.88 : x - Step 2: Convert to fraction form
130,880.18/180,623.58 = 72,743.88/x - Step 3: Cross multiply
130,880.18x = 180,623.58 × 72,743.88 - Step 4: Simplify right side
130,880.18x = 13,139,260,028.69 - Step 5: Solve for x
x = 13,139,260,028.69/130,880.18 - Step 6: Final answer
x = 100,391.52
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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.