Finding the Fourth Proportional to 124,659.24, 172,028.74 and 68,070.60
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Solution
The fourth proportional to 124,659.24, 172,028.74 and 68,070.60 is: 93,936.88
Step by Step Solution
- Step 1: Write the proportion equation
124,659.24 : 172,028.74 = 68,070.60 : x - Step 2: Convert to fraction form
124,659.24/172,028.74 = 68,070.60/x - Step 3: Cross multiply
124,659.24x = 172,028.74 × 68,070.60 - Step 4: Simplify right side
124,659.24x = 11,710,099,549.04 - Step 5: Solve for x
x = 11,710,099,549.04/124,659.24 - Step 6: Final answer
x = 93,936.88
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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.