Finding the Fourth Proportional to 145,679.55, 201,037.73 and 85,261.70
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Solution
The fourth proportional to 145,679.55, 201,037.73 and 85,261.70 is: 117,661.11
Step by Step Solution
- Step 1: Write the proportion equation
145,679.55 : 201,037.73 = 85,261.70 : x - Step 2: Convert to fraction form
145,679.55/201,037.73 = 85,261.70/x - Step 3: Cross multiply
145,679.55x = 201,037.73 × 85,261.70 - Step 4: Simplify right side
145,679.55x = 17,140,817,192.44 - Step 5: Solve for x
x = 17,140,817,192.44/145,679.55 - Step 6: Final answer
x = 117,661.11
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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.