Finding the Fourth Proportional to 124,898.96, 172,356.30 and 71,201.28
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Solution
The fourth proportional to 124,898.96, 172,356.30 and 71,201.28 is: 98,255.34
Step by Step Solution
- Step 1: Write the proportion equation
124,898.96 : 172,356.30 = 71,201.28 : x - Step 2: Convert to fraction form
124,898.96/172,356.30 = 71,201.28/x - Step 3: Cross multiply
124,898.96x = 172,356.30 × 71,201.28 - Step 4: Simplify right side
124,898.96x = 12,271,989,176.06 - Step 5: Solve for x
x = 12,271,989,176.06/124,898.96 - Step 6: Final answer
x = 98,255.34
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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.