Finding the Fourth Proportional to 118,373.28, 163,356.48 and 64,659.84
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Solution
The fourth proportional to 118,373.28, 163,356.48 and 64,659.84 is: 89,231.32
Step by Step Solution
- Step 1: Write the proportion equation
118,373.28 : 163,356.48 = 64,659.84 : x - Step 2: Convert to fraction form
118,373.28/163,356.48 = 64,659.84/x - Step 3: Cross multiply
118,373.28x = 163,356.48 × 64,659.84 - Step 4: Simplify right side
118,373.28x = 10,562,603,859.76 - Step 5: Solve for x
x = 10,562,603,859.76/118,373.28 - Step 6: Final answer
x = 89,231.32
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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.