Finding the Fourth Proportional to 187,155.59, 258,281.10 and 102,278.12
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Solution
The fourth proportional to 187,155.59, 258,281.10 and 102,278.12 is: 141,147.29
Step by Step Solution
- Step 1: Write the proportion equation
187,155.59 : 258,281.10 = 102,278.12 : x - Step 2: Convert to fraction form
187,155.59/258,281.10 = 102,278.12/x - Step 3: Cross multiply
187,155.59x = 258,281.10 × 102,278.12 - Step 4: Simplify right side
187,155.59x = 26,416,504,048.13 - Step 5: Solve for x
x = 26,416,504,048.13/187,155.59 - Step 6: Final answer
x = 141,147.29
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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.