Finding the Fourth Proportional to 124,794.78, 172,214.24 and 68,206.56
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Solution
The fourth proportional to 124,794.78, 172,214.24 and 68,206.56 is: 94,123.66
Step by Step Solution
- Step 1: Write the proportion equation
124,794.78 : 172,214.24 = 68,206.56 : x - Step 2: Convert to fraction form
124,794.78/172,214.24 = 68,206.56/x - Step 3: Cross multiply
124,794.78x = 172,214.24 × 68,206.56 - Step 4: Simplify right side
124,794.78x = 11,746,140,893.41 - Step 5: Solve for x
x = 11,746,140,893.41/124,794.78 - Step 6: Final answer
x = 94,123.66
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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.