Finding the Fourth Proportional to 143,224.74, 197,655.75 and 97,997.58
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Solution
The fourth proportional to 143,224.74, 197,655.75 and 97,997.58 is: 135,240.50
Step by Step Solution
- Step 1: Write the proportion equation
143,224.74 : 197,655.75 = 97,997.58 : x - Step 2: Convert to fraction form
143,224.74/197,655.75 = 97,997.58/x - Step 3: Cross multiply
143,224.74x = 197,655.75 × 97,997.58 - Step 4: Simplify right side
143,224.74x = 19,369,785,173.09 - Step 5: Solve for x
x = 19,369,785,173.09/143,224.74 - Step 6: Final answer
x = 135,240.50
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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.