Finding the Fourth Proportional to 90,201.98, 134,749.86 and 65,027.18
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Solution
The fourth proportional to 90,201.98, 134,749.86 and 65,027.18 is: 97,142.03
Step by Step Solution
- Step 1: Write the proportion equation
90,201.98 : 134,749.86 = 65,027.18 : x - Step 2: Convert to fraction form
90,201.98/134,749.86 = 65,027.18/x - Step 3: Cross multiply
90,201.98x = 134,749.86 × 65,027.18 - Step 4: Simplify right side
90,201.98x = 8,762,403,401.19 - Step 5: Solve for x
x = 8,762,403,401.19/90,201.98 - Step 6: Final answer
x = 97,142.03
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.