Finding the Fourth Proportional to 147,585.30, 221,122.80 and 68,537.40
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Solution
The fourth proportional to 147,585.30, 221,122.80 and 68,537.40 is: 102,687.61
Step by Step Solution
- Step 1: Write the proportion equation
147,585.30 : 221,122.80 = 68,537.40 : x - Step 2: Convert to fraction form
147,585.30/221,122.80 = 68,537.40/x - Step 3: Cross multiply
147,585.30x = 221,122.80 × 68,537.40 - Step 4: Simplify right side
147,585.30x = 15,155,181,792.72 - Step 5: Solve for x
x = 15,155,181,792.72/147,585.30 - Step 6: Final answer
x = 102,687.61
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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.