Finding the Fourth Proportional to 191,189.14, 286,783.68 and 91,045.70
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Solution
The fourth proportional to 191,189.14, 286,783.68 and 91,045.70 is: 136,568.54
Step by Step Solution
- Step 1: Write the proportion equation
191,189.14 : 286,783.68 = 91,045.70 : x - Step 2: Convert to fraction form
191,189.14/286,783.68 = 91,045.70/x - Step 3: Cross multiply
191,189.14x = 286,783.68 × 91,045.70 - Step 4: Simplify right side
191,189.14x = 26,110,420,894.18 - Step 5: Solve for x
x = 26,110,420,894.18/191,189.14 - Step 6: Final answer
x = 136,568.54
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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.