Finding the Fourth Proportional to 110,454.19, 152,419.52 and 65,129.98
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Solution
The fourth proportional to 110,454.19, 152,419.52 and 65,129.98 is: 89,875.09
Step by Step Solution
- Step 1: Write the proportion equation
110,454.19 : 152,419.52 = 65,129.98 : x - Step 2: Convert to fraction form
110,454.19/152,419.52 = 65,129.98/x - Step 3: Cross multiply
110,454.19x = 152,419.52 × 65,129.98 - Step 4: Simplify right side
110,454.19x = 9,927,080,289.21 - Step 5: Solve for x
x = 9,927,080,289.21/110,454.19 - Step 6: Final answer
x = 89,875.09
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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.