Finding the Fourth Proportional to 130,929.24, 180,684.90 and 74,340.48
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Solution
The fourth proportional to 130,929.24, 180,684.90 and 74,340.48 is: 102,591.31
Step by Step Solution
- Step 1: Write the proportion equation
130,929.24 : 180,684.90 = 74,340.48 : x - Step 2: Convert to fraction form
130,929.24/180,684.90 = 74,340.48/x - Step 3: Cross multiply
130,929.24x = 180,684.90 × 74,340.48 - Step 4: Simplify right side
130,929.24x = 13,432,202,194.75 - Step 5: Solve for x
x = 13,432,202,194.75/130,929.24 - Step 6: Final answer
x = 102,591.31
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1.5x scale
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.