Finding the Fourth Proportional to 118,479.76, 163,475.70 and 68,178.76
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Solution
The fourth proportional to 118,479.76, 163,475.70 and 68,178.76 is: 94,071.51
Step by Step Solution
- Step 1: Write the proportion equation
118,479.76 : 163,475.70 = 68,178.76 : x - Step 2: Convert to fraction form
118,479.76/163,475.70 = 68,178.76/x - Step 3: Cross multiply
118,479.76x = 163,475.70 × 68,178.76 - Step 4: Simplify right side
118,479.76x = 11,145,570,516.13 - Step 5: Solve for x
x = 11,145,570,516.13/118,479.76 - Step 6: Final answer
x = 94,071.51
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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.