Finding the Fourth Proportional to 125,284.74, 172,905.45 and 71,577.81
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Solution
The fourth proportional to 125,284.74, 172,905.45 and 71,577.81 is: 98,784.52
Step by Step Solution
- Step 1: Write the proportion equation
125,284.74 : 172,905.45 = 71,577.81 : x - Step 2: Convert to fraction form
125,284.74/172,905.45 = 71,577.81/x - Step 3: Cross multiply
125,284.74x = 172,905.45 × 71,577.81 - Step 4: Simplify right side
125,284.74x = 12,376,193,448.06 - Step 5: Solve for x
x = 12,376,193,448.06/125,284.74 - Step 6: Final answer
x = 98,784.52
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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.