Finding the Fourth Proportional to 159,054.09, 219,492.87 and 86,455.41
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Solution
The fourth proportional to 159,054.09, 219,492.87 and 86,455.41 is: 119,307.50
Step by Step Solution
- Step 1: Write the proportion equation
159,054.09 : 219,492.87 = 86,455.41 : x - Step 2: Convert to fraction form
159,054.09/219,492.87 = 86,455.41/x - Step 3: Cross multiply
159,054.09x = 219,492.87 × 86,455.41 - Step 4: Simplify right side
159,054.09x = 18,976,346,067.93 - Step 5: Solve for x
x = 18,976,346,067.93/159,054.09 - Step 6: Final answer
x = 119,307.50
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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.