Finding the Fourth Proportional to 159,266.10, 219,787.26 and 87,646.13
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Solution
The fourth proportional to 159,266.10, 219,787.26 and 87,646.13 is: 120,951.68
Step by Step Solution
- Step 1: Write the proportion equation
159,266.10 : 219,787.26 = 87,646.13 : x - Step 2: Convert to fraction form
159,266.10/219,787.26 = 87,646.13/x - Step 3: Cross multiply
159,266.10x = 219,787.26 × 87,646.13 - Step 4: Simplify right side
159,266.10x = 19,263,502,762.30 - Step 5: Solve for x
x = 19,263,502,762.30/159,266.10 - Step 6: Final answer
x = 120,951.68
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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.