Finding the Fourth Proportional to 118,831.76, 163,992.35 and 67,852.79
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Solution
The fourth proportional to 118,831.76, 163,992.35 and 67,852.79 is: 93,639.43
Step by Step Solution
- Step 1: Write the proportion equation
118,831.76 : 163,992.35 = 67,852.79 : x - Step 2: Convert to fraction form
118,831.76/163,992.35 = 67,852.79/x - Step 3: Cross multiply
118,831.76x = 163,992.35 × 67,852.79 - Step 4: Simplify right side
118,831.76x = 11,127,338,069.13 - Step 5: Solve for x
x = 11,127,338,069.13/118,831.76 - Step 6: Final answer
x = 93,639.43
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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.