Finding the Fourth Proportional to 156,962.74, 216,606.06 and 85,342.12
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Solution
The fourth proportional to 156,962.74, 216,606.06 and 85,342.12 is: 117,770.75
Step by Step Solution
- Step 1: Write the proportion equation
156,962.74 : 216,606.06 = 85,342.12 : x - Step 2: Convert to fraction form
156,962.74/216,606.06 = 85,342.12/x - Step 3: Cross multiply
156,962.74x = 216,606.06 × 85,342.12 - Step 4: Simplify right side
156,962.74x = 18,485,620,365.25 - Step 5: Solve for x
x = 18,485,620,365.25/156,962.74 - Step 6: Final answer
x = 117,770.75
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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.