Finding the Fourth Proportional to 127,129.84, 175,439.28 and 70,541.18
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Solution
The fourth proportional to 127,129.84, 175,439.28 and 70,541.18 is: 97,346.88
Step by Step Solution
- Step 1: Write the proportion equation
127,129.84 : 175,439.28 = 70,541.18 : x - Step 2: Convert to fraction form
127,129.84/175,439.28 = 70,541.18/x - Step 3: Cross multiply
127,129.84x = 175,439.28 × 70,541.18 - Step 4: Simplify right side
127,129.84x = 12,375,693,829.55 - Step 5: Solve for x
x = 12,375,693,829.55/127,129.84 - Step 6: Final answer
x = 97,346.88
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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.