Finding the Fourth Proportional to 153,703.28, 212,129.97 and 93,270.44
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Solution
The fourth proportional to 153,703.28, 212,129.97 and 93,270.44 is: 128,725.01
Step by Step Solution
- Step 1: Write the proportion equation
153,703.28 : 212,129.97 = 93,270.44 : x - Step 2: Convert to fraction form
153,703.28/212,129.97 = 93,270.44/x - Step 3: Cross multiply
153,703.28x = 212,129.97 × 93,270.44 - Step 4: Simplify right side
153,703.28x = 19,785,455,819.65 - Step 5: Solve for x
x = 19,785,455,819.65/153,703.28 - Step 6: Final answer
x = 128,725.01
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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.