Finding the Fourth Proportional to 125,129.84, 172,681.08 and 68,546.48
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Solution
The fourth proportional to 125,129.84, 172,681.08 and 68,546.48 is: 94,595.18
Step by Step Solution
- Step 1: Write the proportion equation
125,129.84 : 172,681.08 = 68,546.48 : x - Step 2: Convert to fraction form
125,129.84/172,681.08 = 68,546.48/x - Step 3: Cross multiply
125,129.84x = 172,681.08 × 68,546.48 - Step 4: Simplify right side
125,129.84x = 11,836,680,196.60 - Step 5: Solve for x
x = 11,836,680,196.60/125,129.84 - Step 6: Final answer
x = 94,595.18
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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.