Finding the Fourth Proportional to 134,831.76, 186,060.56 and 74,390.56
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Solution
The fourth proportional to 134,831.76, 186,060.56 and 74,390.56 is: 102,654.96
Step by Step Solution
- Step 1: Write the proportion equation
134,831.76 : 186,060.56 = 74,390.56 : x - Step 2: Convert to fraction form
134,831.76/186,060.56 = 74,390.56/x - Step 3: Cross multiply
134,831.76x = 186,060.56 × 74,390.56 - Step 4: Simplify right side
134,831.76x = 13,841,149,252.31 - Step 5: Solve for x
x = 13,841,149,252.31/134,831.76 - Step 6: Final answer
x = 102,654.96
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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.