Finding the Fourth Proportional to 106,595.09, 159,878.04 and 31,726.79
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Solution
The fourth proportional to 106,595.09, 159,878.04 and 31,726.79 is: 47,585.84
Step by Step Solution
- Step 1: Write the proportion equation
106,595.09 : 159,878.04 = 31,726.79 : x - Step 2: Convert to fraction form
106,595.09/159,878.04 = 31,726.79/x - Step 3: Cross multiply
106,595.09x = 159,878.04 × 31,726.79 - Step 4: Simplify right side
106,595.09x = 5,072,416,201.30 - Step 5: Solve for x
x = 5,072,416,201.30/106,595.09 - Step 6: Final answer
x = 47,585.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.