Finding the Fourth Proportional to 125,124.36, 172,671.69 and 68,536.68
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Solution
The fourth proportional to 125,124.36, 172,671.69 and 68,536.68 is: 94,580.66
Step by Step Solution
- Step 1: Write the proportion equation
125,124.36 : 172,671.69 = 68,536.68 : x - Step 2: Convert to fraction form
125,124.36/172,671.69 = 68,536.68/x - Step 3: Cross multiply
125,124.36x = 172,671.69 × 68,536.68 - Step 4: Simplify right side
125,124.36x = 11,834,344,362.59 - Step 5: Solve for x
x = 11,834,344,362.59/125,124.36 - Step 6: Final answer
x = 94,580.66
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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.