Finding the Fourth Proportional to 155,719.14, 214,892.36 and 84,099.18
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Solution
The fourth proportional to 155,719.14, 214,892.36 and 84,099.18 is: 116,056.84
Step by Step Solution
- Step 1: Write the proportion equation
155,719.14 : 214,892.36 = 84,099.18 : x - Step 2: Convert to fraction form
155,719.14/214,892.36 = 84,099.18/x - Step 3: Cross multiply
155,719.14x = 214,892.36 × 84,099.18 - Step 4: Simplify right side
155,719.14x = 18,072,271,264.26 - Step 5: Solve for x
x = 18,072,271,264.26/155,719.14 - Step 6: Final answer
x = 116,056.84
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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.