Finding the Fourth Proportional to 154,623.69, 213,289.07 and 97,936.65
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Solution
The fourth proportional to 154,623.69, 213,289.07 and 97,936.65 is: 135,094.54
Step by Step Solution
- Step 1: Write the proportion equation
154,623.69 : 213,289.07 = 97,936.65 : x - Step 2: Convert to fraction form
154,623.69/213,289.07 = 97,936.65/x - Step 3: Cross multiply
154,623.69x = 213,289.07 × 97,936.65 - Step 4: Simplify right side
154,623.69x = 20,888,816,507.73 - Step 5: Solve for x
x = 20,888,816,507.73/154,623.69 - Step 6: Final answer
x = 135,094.54
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1.5x scale
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.