Finding the Fourth Proportional to 135,022.60, 202,533.90 and 128,461.60
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Solution
The fourth proportional to 135,022.60, 202,533.90 and 128,461.60 is: 192,692.40
Step by Step Solution
- Step 1: Write the proportion equation
135,022.60 : 202,533.90 = 128,461.60 : x - Step 2: Convert to fraction form
135,022.60/202,533.90 = 128,461.60/x - Step 3: Cross multiply
135,022.60x = 202,533.90 × 128,461.60 - Step 4: Simplify right side
135,022.60x = 26,017,828,848.24 - Step 5: Solve for x
x = 26,017,828,848.24/135,022.60 - Step 6: Final answer
x = 192,692.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.