Finding the Fourth Proportional to 135,262.08, 186,649.92 and 74,831.76
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Solution
The fourth proportional to 135,262.08, 186,649.92 and 74,831.76 is: 103,261.33
Step by Step Solution
- Step 1: Write the proportion equation
135,262.08 : 186,649.92 = 74,831.76 : x - Step 2: Convert to fraction form
135,262.08/186,649.92 = 74,831.76/x - Step 3: Cross multiply
135,262.08x = 186,649.92 × 74,831.76 - Step 4: Simplify right side
135,262.08x = 13,967,342,017.46 - Step 5: Solve for x
x = 13,967,342,017.46/135,262.08 - Step 6: Final answer
x = 103,261.33
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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.