Finding the Fourth Proportional to 159,259.91, 219,773.16 and 87,633.23
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Solution
The fourth proportional to 159,259.91, 219,773.16 and 87,633.23 is: 120,930.82
Step by Step Solution
- Step 1: Write the proportion equation
159,259.91 : 219,773.16 = 87,633.23 : x - Step 2: Convert to fraction form
159,259.91/219,773.16 = 87,633.23/x - Step 3: Cross multiply
159,259.91x = 219,773.16 × 87,633.23 - Step 4: Simplify right side
159,259.91x = 19,259,430,779.24 - Step 5: Solve for x
x = 19,259,430,779.24/159,259.91 - Step 6: Final answer
x = 120,930.82
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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.