Finding the Fourth Proportional to 121,900.04, 182,739.36 and 55,303.92
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Solution
The fourth proportional to 121,900.04, 182,739.36 and 55,303.92 is: 82,905.66
Step by Step Solution
- Step 1: Write the proportion equation
121,900.04 : 182,739.36 = 55,303.92 : x - Step 2: Convert to fraction form
121,900.04/182,739.36 = 55,303.92/x - Step 3: Cross multiply
121,900.04x = 182,739.36 × 55,303.92 - Step 4: Simplify right side
121,900.04x = 10,106,202,946.29 - Step 5: Solve for x
x = 10,106,202,946.29/121,900.04 - Step 6: Final answer
x = 82,905.66
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1.5x scale
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.