Finding the Fourth Proportional to 187,910.46, 259,316.10 and 103,032.99
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Solution
The fourth proportional to 187,910.46, 259,316.10 and 103,032.99 is: 142,185.34
Step by Step Solution
- Step 1: Write the proportion equation
187,910.46 : 259,316.10 = 103,032.99 : x - Step 2: Convert to fraction form
187,910.46/259,316.10 = 103,032.99/x - Step 3: Cross multiply
187,910.46x = 259,316.10 × 103,032.99 - Step 4: Simplify right side
187,910.46x = 26,718,113,138.14 - Step 5: Solve for x
x = 26,718,113,138.14/187,910.46 - Step 6: Final answer
x = 142,185.34
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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.