Finding the Fourth Proportional to 138,119.99, 190,442.54 and 94,533.56
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Solution
The fourth proportional to 138,119.99, 190,442.54 and 94,533.56 is: 130,344.72
Step by Step Solution
- Step 1: Write the proportion equation
138,119.99 : 190,442.54 = 94,533.56 : x - Step 2: Convert to fraction form
138,119.99/190,442.54 = 94,533.56/x - Step 3: Cross multiply
138,119.99x = 190,442.54 × 94,533.56 - Step 4: Simplify right side
138,119.99x = 18,003,210,407.26 - Step 5: Solve for x
x = 18,003,210,407.26/138,119.99 - Step 6: Final answer
x = 130,344.72
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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.