Finding the Fourth Proportional to 187,455.13, 258,688.08 and 102,572.19
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Solution
The fourth proportional to 187,455.13, 258,688.08 and 102,572.19 is: 141,549.62
Step by Step Solution
- Step 1: Write the proportion equation
187,455.13 : 258,688.08 = 102,572.19 : x - Step 2: Convert to fraction form
187,455.13/258,688.08 = 102,572.19/x - Step 3: Cross multiply
187,455.13x = 258,688.08 × 102,572.19 - Step 4: Simplify right side
187,455.13x = 26,534,202,379.63 - Step 5: Solve for x
x = 26,534,202,379.63/187,455.13 - Step 6: Final answer
x = 141,549.62
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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.