Finding the Fourth Proportional to 124,739.84, 172,138.88 and 68,151.68
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Solution
The fourth proportional to 124,739.84, 172,138.88 and 68,151.68 is: 94,048.17
Step by Step Solution
- Step 1: Write the proportion equation
124,739.84 : 172,138.88 = 68,151.68 : x - Step 2: Convert to fraction form
124,739.84/172,138.88 = 68,151.68/x - Step 3: Cross multiply
124,739.84x = 172,138.88 × 68,151.68 - Step 4: Simplify right side
124,739.84x = 11,731,553,865.32 - Step 5: Solve for x
x = 11,731,553,865.32/124,739.84 - Step 6: Final answer
x = 94,048.17
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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.