Finding the Fourth Proportional to 110,921.18, 153,102.58 and 65,614.91
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Solution
The fourth proportional to 110,921.18, 153,102.58 and 65,614.91 is: 90,567.12
Step by Step Solution
- Step 1: Write the proportion equation
110,921.18 : 153,102.58 = 65,614.91 : x - Step 2: Convert to fraction form
110,921.18/153,102.58 = 65,614.91/x - Step 3: Cross multiply
110,921.18x = 153,102.58 × 65,614.91 - Step 4: Simplify right side
110,921.18x = 10,045,811,775.08 - Step 5: Solve for x
x = 10,045,811,775.08/110,921.18 - Step 6: Final answer
x = 90,567.12
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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.