Finding the Fourth Proportional to 153,425.52, 211,792.68 and 103,153.68
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Solution
The fourth proportional to 153,425.52, 211,792.68 and 103,153.68 is: 142,396.09
Step by Step Solution
- Step 1: Write the proportion equation
153,425.52 : 211,792.68 = 103,153.68 : x - Step 2: Convert to fraction form
153,425.52/211,792.68 = 103,153.68/x - Step 3: Cross multiply
153,425.52x = 211,792.68 × 103,153.68 - Step 4: Simplify right side
153,425.52x = 21,847,194,339.06 - Step 5: Solve for x
x = 21,847,194,339.06/153,425.52 - Step 6: Final answer
x = 142,396.09
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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.