Finding the Fourth Proportional to 162,831.60, 243,886.56 and 125,114.08
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Solution
The fourth proportional to 162,831.60, 243,886.56 and 125,114.08 is: 187,393.86
Step by Step Solution
- Step 1: Write the proportion equation
162,831.60 : 243,886.56 = 125,114.08 : x - Step 2: Convert to fraction form
162,831.60/243,886.56 = 125,114.08/x - Step 3: Cross multiply
162,831.60x = 243,886.56 × 125,114.08 - Step 4: Simplify right side
162,831.60x = 30,513,642,578.76 - Step 5: Solve for x
x = 30,513,642,578.76/162,831.60 - Step 6: Final answer
x = 187,393.86
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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.