Finding the Fourth Proportional to 172,372.41, 258,501.20 and 72,513.99
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Solution
The fourth proportional to 172,372.41, 258,501.20 and 72,513.99 is: 108,746.83
Step by Step Solution
- Step 1: Write the proportion equation
172,372.41 : 258,501.20 = 72,513.99 : x - Step 2: Convert to fraction form
172,372.41/258,501.20 = 72,513.99/x - Step 3: Cross multiply
172,372.41x = 258,501.20 × 72,513.99 - Step 4: Simplify right side
172,372.41x = 18,744,953,069.22 - Step 5: Solve for x
x = 18,744,953,069.22/172,372.41 - Step 6: Final answer
x = 108,746.83
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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.