Finding the Fourth Proportional to 110,237.76, 165,225.36 and 76,776.66
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Solution
The fourth proportional to 110,237.76, 165,225.36 and 76,776.66 is: 115,073.56
Step by Step Solution
- Step 1: Write the proportion equation
110,237.76 : 165,225.36 = 76,776.66 : x - Step 2: Convert to fraction form
110,237.76/165,225.36 = 76,776.66/x - Step 3: Cross multiply
110,237.76x = 165,225.36 × 76,776.66 - Step 4: Simplify right side
110,237.76x = 12,685,451,288.10 - Step 5: Solve for x
x = 12,685,451,288.10/110,237.76 - Step 6: Final answer
x = 115,073.56
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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.