Finding the Fourth Proportional to 98,146.65, 135,442.39 and 53,434.65
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Solution
The fourth proportional to 98,146.65, 135,442.39 and 53,434.65 is: 73,739.82
Step by Step Solution
- Step 1: Write the proportion equation
98,146.65 : 135,442.39 = 53,434.65 : x - Step 2: Convert to fraction form
98,146.65/135,442.39 = 53,434.65/x - Step 3: Cross multiply
98,146.65x = 135,442.39 × 53,434.65 - Step 4: Simplify right side
98,146.65x = 7,237,316,704.81 - Step 5: Solve for x
x = 7,237,316,704.81/98,146.65 - Step 6: Final answer
x = 73,739.82
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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.