Finding the Fourth Proportional to 145,920.02, 201,369.12 and 78,852.02
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Solution
The fourth proportional to 145,920.02, 201,369.12 and 78,852.02 is: 108,815.51
Step by Step Solution
- Step 1: Write the proportion equation
145,920.02 : 201,369.12 = 78,852.02 : x - Step 2: Convert to fraction form
145,920.02/201,369.12 = 78,852.02/x - Step 3: Cross multiply
145,920.02x = 201,369.12 × 78,852.02 - Step 4: Simplify right side
145,920.02x = 15,878,361,877.62 - Step 5: Solve for x
x = 15,878,361,877.62/145,920.02 - Step 6: Final answer
x = 108,815.51
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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.