Finding the Fourth Proportional to 159,368.48, 219,928.19 and 87,748.55
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Solution
The fourth proportional to 159,368.48, 219,928.19 and 87,748.55 is: 121,092.82
Step by Step Solution
- Step 1: Write the proportion equation
159,368.48 : 219,928.19 = 87,748.55 : x - Step 2: Convert to fraction form
159,368.48/219,928.19 = 87,748.55/x - Step 3: Cross multiply
159,368.48x = 219,928.19 × 87,748.55 - Step 4: Simplify right side
159,368.48x = 19,298,378,238.24 - Step 5: Solve for x
x = 19,298,378,238.24/159,368.48 - Step 6: Final answer
x = 121,092.82
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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.