Finding the Fourth Proportional to 180,696.79, 249,361.33 and 100,129.53
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Solution
The fourth proportional to 180,696.79, 249,361.33 and 100,129.53 is: 138,178.62
Step by Step Solution
- Step 1: Write the proportion equation
180,696.79 : 249,361.33 = 100,129.53 : x - Step 2: Convert to fraction form
180,696.79/249,361.33 = 100,129.53/x - Step 3: Cross multiply
180,696.79x = 249,361.33 × 100,129.53 - Step 4: Simplify right side
180,696.79x = 24,968,432,272.43 - Step 5: Solve for x
x = 24,968,432,272.43/180,696.79 - Step 6: Final answer
x = 138,178.62
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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.