Finding the Fourth Proportional to 124,897.63, 172,358.86 and 68,309.14
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Solution
The fourth proportional to 124,897.63, 172,358.86 and 68,309.14 is: 94,266.68
Step by Step Solution
- Step 1: Write the proportion equation
124,897.63 : 172,358.86 = 68,309.14 : x - Step 2: Convert to fraction form
124,897.63/172,358.86 = 68,309.14/x - Step 3: Cross multiply
124,897.63x = 172,358.86 × 68,309.14 - Step 4: Simplify right side
124,897.63x = 11,773,685,497.98 - Step 5: Solve for x
x = 11,773,685,497.98/124,897.63 - Step 6: Final answer
x = 94,266.68
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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.