Finding the Fourth Proportional to 159,013.08, 219,357.18 and 121,221.72
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Solution
The fourth proportional to 159,013.08, 219,357.18 and 121,221.72 is: 167,224.32
Step by Step Solution
- Step 1: Write the proportion equation
159,013.08 : 219,357.18 = 121,221.72 : x - Step 2: Convert to fraction form
159,013.08/219,357.18 = 121,221.72/x - Step 3: Cross multiply
159,013.08x = 219,357.18 × 121,221.72 - Step 4: Simplify right side
159,013.08x = 26,590,854,653.95 - Step 5: Solve for x
x = 26,590,854,653.95/159,013.08 - Step 6: Final answer
x = 167,224.32
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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.