Finding the Fourth Proportional to 126,652.60, 189,862.26 and 60,124.06
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Solution
The fourth proportional to 126,652.60, 189,862.26 and 60,124.06 is: 90,130.72
Step by Step Solution
- Step 1: Write the proportion equation
126,652.60 : 189,862.26 = 60,124.06 : x - Step 2: Convert to fraction form
126,652.60/189,862.26 = 60,124.06/x - Step 3: Cross multiply
126,652.60x = 189,862.26 × 60,124.06 - Step 4: Simplify right side
126,652.60x = 11,415,289,911.98 - Step 5: Solve for x
x = 11,415,289,911.98/126,652.60 - Step 6: Final answer
x = 90,130.72
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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.