Finding the Fourth Proportional to 118,737.64, 178,051.12 and 68,832.02
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Solution
The fourth proportional to 118,737.64, 178,051.12 and 68,832.02 is: 103,215.95
Step by Step Solution
- Step 1: Write the proportion equation
118,737.64 : 178,051.12 = 68,832.02 : x - Step 2: Convert to fraction form
118,737.64/178,051.12 = 68,832.02/x - Step 3: Cross multiply
118,737.64x = 178,051.12 × 68,832.02 - Step 4: Simplify right side
118,737.64x = 12,255,618,252.86 - Step 5: Solve for x
x = 12,255,618,252.86/118,737.64 - Step 6: Final answer
x = 103,215.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.