Finding the Fourth Proportional to 138,603.98, 207,911.16 and 62,688.08
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Solution
The fourth proportional to 138,603.98, 207,911.16 and 62,688.08 is: 94,034.46
Step by Step Solution
- Step 1: Write the proportion equation
138,603.98 : 207,911.16 = 62,688.08 : x - Step 2: Convert to fraction form
138,603.98/207,911.16 = 62,688.08/x - Step 3: Cross multiply
138,603.98x = 207,911.16 × 62,688.08 - Step 4: Simplify right side
138,603.98x = 13,033,550,391.42 - Step 5: Solve for x
x = 13,033,550,391.42/138,603.98 - Step 6: Final answer
x = 94,034.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.