Finding the Fourth Proportional to 103,963.30, 155,555.70 and 74,046.70
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Solution
The fourth proportional to 103,963.30, 155,555.70 and 74,046.70 is: 110,792.81
Step by Step Solution
- Step 1: Write the proportion equation
103,963.30 : 155,555.70 = 74,046.70 : x - Step 2: Convert to fraction form
103,963.30/155,555.70 = 74,046.70/x - Step 3: Cross multiply
103,963.30x = 155,555.70 × 74,046.70 - Step 4: Simplify right side
103,963.30x = 11,518,386,251.19 - Step 5: Solve for x
x = 11,518,386,251.19/103,963.30 - Step 6: Final answer
x = 110,792.81
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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.