Finding the Fourth Proportional to 118,482.76, 163,479.84 and 68,181.76
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Solution
The fourth proportional to 118,482.76, 163,479.84 and 68,181.76 is: 94,075.65
Step by Step Solution
- Step 1: Write the proportion equation
118,482.76 : 163,479.84 = 68,181.76 : x - Step 2: Convert to fraction form
118,482.76/163,479.84 = 68,181.76/x - Step 3: Cross multiply
118,482.76x = 163,479.84 × 68,181.76 - Step 4: Simplify right side
118,482.76x = 11,146,343,215.72 - Step 5: Solve for x
x = 11,146,343,215.72/118,482.76 - Step 6: Final answer
x = 94,075.65
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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.