Finding the Fourth Proportional to 171,683.16, 257,418.12 and 71,720.86
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Solution
The fourth proportional to 171,683.16, 257,418.12 and 71,720.86 is: 107,536.75
Step by Step Solution
- Step 1: Write the proportion equation
171,683.16 : 257,418.12 = 71,720.86 : x - Step 2: Convert to fraction form
171,683.16/257,418.12 = 71,720.86/x - Step 3: Cross multiply
171,683.16x = 257,418.12 × 71,720.86 - Step 4: Simplify right side
171,683.16x = 18,462,248,945.98 - Step 5: Solve for x
x = 18,462,248,945.98/171,683.16 - Step 6: Final answer
x = 107,536.75
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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.