Finding the Fourth Proportional to 124,217.47, 171,347.29 and 87,878.26
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Solution
The fourth proportional to 124,217.47, 171,347.29 and 87,878.26 is: 121,220.48
Step by Step Solution
- Step 1: Write the proportion equation
124,217.47 : 171,347.29 = 87,878.26 : x - Step 2: Convert to fraction form
124,217.47/171,347.29 = 87,878.26/x - Step 3: Cross multiply
124,217.47x = 171,347.29 × 87,878.26 - Step 4: Simplify right side
124,217.47x = 15,057,701,700.92 - Step 5: Solve for x
x = 15,057,701,700.92/124,217.47 - Step 6: Final answer
x = 121,220.48
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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.