Finding the Fourth Proportional to 186,854.49, 257,859.12 and 101,971.55
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Solution
The fourth proportional to 186,854.49, 257,859.12 and 101,971.55 is: 140,720.70
Step by Step Solution
- Step 1: Write the proportion equation
186,854.49 : 257,859.12 = 101,971.55 : x - Step 2: Convert to fraction form
186,854.49/257,859.12 = 101,971.55/x - Step 3: Cross multiply
186,854.49x = 257,859.12 × 101,971.55 - Step 4: Simplify right side
186,854.49x = 26,294,293,825.71 - Step 5: Solve for x
x = 26,294,293,825.71/186,854.49 - Step 6: Final answer
x = 140,720.70
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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.