Finding the Fourth Proportional to 137,323.90, 189,409.08 and 126,029.98
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Solution
The fourth proportional to 137,323.90, 189,409.08 and 126,029.98 is: 173,831.52
Step by Step Solution
- Step 1: Write the proportion equation
137,323.90 : 189,409.08 = 126,029.98 : x - Step 2: Convert to fraction form
137,323.90/189,409.08 = 126,029.98/x - Step 3: Cross multiply
137,323.90x = 189,409.08 × 126,029.98 - Step 4: Simplify right side
137,323.90x = 23,871,222,564.22 - Step 5: Solve for x
x = 23,871,222,564.22/137,323.90 - Step 6: Final answer
x = 173,831.52
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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.