Finding the Fourth Proportional to 124,780.69, 172,197.45 and 68,192.08
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Solution
The fourth proportional to 124,780.69, 172,197.45 and 68,192.08 is: 94,105.12
Step by Step Solution
- Step 1: Write the proportion equation
124,780.69 : 172,197.45 = 68,192.08 : x - Step 2: Convert to fraction form
124,780.69/172,197.45 = 68,192.08/x - Step 3: Cross multiply
124,780.69x = 172,197.45 × 68,192.08 - Step 4: Simplify right side
124,780.69x = 11,742,502,286.20 - Step 5: Solve for x
x = 11,742,502,286.20/124,780.69 - Step 6: Final answer
x = 94,105.12
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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.