Finding the Fourth Proportional to 124,787.27, 172,237.05 and 71,104.02
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Solution
The fourth proportional to 124,787.27, 172,237.05 and 71,104.02 is: 98,140.99
Step by Step Solution
- Step 1: Write the proportion equation
124,787.27 : 172,237.05 = 71,104.02 : x - Step 2: Convert to fraction form
124,787.27/172,237.05 = 71,104.02/x - Step 3: Cross multiply
124,787.27x = 172,237.05 × 71,104.02 - Step 4: Simplify right side
124,787.27x = 12,246,746,002.05 - Step 5: Solve for x
x = 12,246,746,002.05/124,787.27 - Step 6: Final answer
x = 98,140.99
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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.