Finding the Fourth Proportional to 97,805.74, 134,962.58 and 77,711.26
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Solution
The fourth proportional to 97,805.74, 134,962.58 and 77,711.26 is: 107,234.12
Step by Step Solution
- Step 1: Write the proportion equation
97,805.74 : 134,962.58 = 77,711.26 : x - Step 2: Convert to fraction form
97,805.74/134,962.58 = 77,711.26/x - Step 3: Cross multiply
97,805.74x = 134,962.58 × 77,711.26 - Step 4: Simplify right side
97,805.74x = 10,488,112,144.65 - Step 5: Solve for x
x = 10,488,112,144.65/97,805.74 - Step 6: Final answer
x = 107,234.12
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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.