Finding the Fourth Proportional to 159,273.91, 219,799.02 and 87,652.09
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Solution
The fourth proportional to 159,273.91, 219,799.02 and 87,652.09 is: 120,960.45
Step by Step Solution
- Step 1: Write the proportion equation
159,273.91 : 219,799.02 = 87,652.09 : x - Step 2: Convert to fraction form
159,273.91/219,799.02 = 87,652.09/x - Step 3: Cross multiply
159,273.91x = 219,799.02 × 87,652.09 - Step 4: Simplify right side
159,273.91x = 19,265,843,482.95 - Step 5: Solve for x
x = 19,265,843,482.95/159,273.91 - Step 6: Final answer
x = 120,960.45
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1.5x scale
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.