Finding the Fourth Proportional to 187,830.23, 259,204.25 and 102,947.09
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Solution
The fourth proportional to 187,830.23, 259,204.25 and 102,947.09 is: 142,066.18
Step by Step Solution
- Step 1: Write the proportion equation
187,830.23 : 259,204.25 = 102,947.09 : x - Step 2: Convert to fraction form
187,830.23/259,204.25 = 102,947.09/x - Step 3: Cross multiply
187,830.23x = 259,204.25 × 102,947.09 - Step 4: Simplify right side
187,830.23x = 26,684,322,214.48 - Step 5: Solve for x
x = 26,684,322,214.48/187,830.23 - Step 6: Final answer
x = 142,066.18
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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.