Finding the Fourth Proportional to 153,396.08, 211,686.44 and 86,329.52
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Solution
The fourth proportional to 153,396.08, 211,686.44 and 86,329.52 is: 119,134.65
Step by Step Solution
- Step 1: Write the proportion equation
153,396.08 : 211,686.44 = 86,329.52 : x - Step 2: Convert to fraction form
153,396.08/211,686.44 = 86,329.52/x - Step 3: Cross multiply
153,396.08x = 211,686.44 × 86,329.52 - Step 4: Simplify right side
153,396.08x = 18,274,788,755.71 - Step 5: Solve for x
x = 18,274,788,755.71/153,396.08 - Step 6: Final answer
x = 119,134.65
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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.