Finding the Fourth Proportional to 153,800.87, 212,259.84 and 93,357.65
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Solution
The fourth proportional to 153,800.87, 212,259.84 and 93,357.65 is: 128,842.44
Step by Step Solution
- Step 1: Write the proportion equation
153,800.87 : 212,259.84 = 93,357.65 : x - Step 2: Convert to fraction form
153,800.87/212,259.84 = 93,357.65/x - Step 3: Cross multiply
153,800.87x = 212,259.84 × 93,357.65 - Step 4: Simplify right side
153,800.87x = 19,816,078,790.48 - Step 5: Solve for x
x = 19,816,078,790.48/153,800.87 - Step 6: Final answer
x = 128,842.44
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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.