Finding the Fourth Proportional to 159,374.24, 219,928.26 and 87,740.48
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Solution
The fourth proportional to 159,374.24, 219,928.26 and 87,740.48 is: 121,077.35
Step by Step Solution
- Step 1: Write the proportion equation
159,374.24 : 219,928.26 = 87,740.48 : x - Step 2: Convert to fraction form
159,374.24/219,928.26 = 87,740.48/x - Step 3: Cross multiply
159,374.24x = 219,928.26 × 87,740.48 - Step 4: Simplify right side
159,374.24x = 19,296,611,097.96 - Step 5: Solve for x
x = 19,296,611,097.96/159,374.24 - Step 6: Final answer
x = 121,077.35
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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.