Finding the Fourth Proportional to 130,684.14, 180,399.18 and 88,300.08
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Solution
The fourth proportional to 130,684.14, 180,399.18 and 88,300.08 is: 121,891.32
Step by Step Solution
- Step 1: Write the proportion equation
130,684.14 : 180,399.18 = 88,300.08 : x - Step 2: Convert to fraction form
130,684.14/180,399.18 = 88,300.08/x - Step 3: Cross multiply
130,684.14x = 180,399.18 × 88,300.08 - Step 4: Simplify right side
130,684.14x = 15,929,262,025.93 - Step 5: Solve for x
x = 15,929,262,025.93/130,684.14 - Step 6: Final answer
x = 121,891.32
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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.