Finding the Fourth Proportional to 110,980.24, 153,115.26 and 63,199.76
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Solution
The fourth proportional to 110,980.24, 153,115.26 and 63,199.76 is: 87,194.33
Step by Step Solution
- Step 1: Write the proportion equation
110,980.24 : 153,115.26 = 63,199.76 : x - Step 2: Convert to fraction form
110,980.24/153,115.26 = 63,199.76/x - Step 3: Cross multiply
110,980.24x = 153,115.26 × 63,199.76 - Step 4: Simplify right side
110,980.24x = 9,676,847,898.53 - Step 5: Solve for x
x = 9,676,847,898.53/110,980.24 - Step 6: Final answer
x = 87,194.33
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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.